ID CVE-2016-9793
Summary The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.
References
Vulnerable Configurations
  • Linux Kernel 4.8.13
    cpe:2.3:o:linux:linux_kernel:4.8.13
CVSS
Base: 7.2 (as of 28-12-2016 - 11:16)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
exploit-db via4
description Linux Kernel 3.11 < 4.8 0 - 'SO_SNDBUFFORCE' & 'SO_RCVBUFFORCE' Local Privilege Escalation. CVE-2016-9793. Local exploit for Linux platform
id EDB-ID:41995
last seen 2017-05-12
modified 2017-02-22
published 2017-02-22
reporter Exploit-DB
source https://www.exploit-db.com/download/41995/
title Linux Kernel 3.11 < 4.8 0 - 'SO_SNDBUFFORCE' & 'SO_RCVBUFFORCE' Local Privilege Escalation
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3169-2.NASL
    description USN-3169-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793) Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96440
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96440
    title Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3169-2)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3170-1.NASL
    description Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96443
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96443
    title Ubuntu 16.10 : linux vulnerabilities (USN-3170-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0333-1.NASL
    description The SUSE Linux Enterprise 11 SP2 LTSS kernel was updated to receive various security and bugfixes. This is the last planned LTSS kernel update for the SUSE Linux Enterprise Server 11 SP2 LTSS. The following security bugs were fixed : - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2004-0230: TCP, when using a large Window Size, made it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP (bnc#969340). - CVE-2016-8632: The tipc_msg_build function in net/tipc/msg.c in the Linux kernel did not validate the relationship between the minimum fragment length and the maximum packet size, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability (bnc#1008831). - CVE-2016-8399: An out of bounds read in the ping protocol handler could have lead to information disclosure (bsc#1014746). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531). - CVE-2012-6704: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option (bnc#1013542). - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038). - CVE-2016-3841: The IPv6 stack in the Linux kernel mishandled options data, which allowed local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call (bnc#992566). - CVE-2016-9685: Multiple memory leaks in error paths in fs/xfs/xfs_attr_list.c in the Linux kernel allowed local users to cause a denial of service (memory consumption) via crafted XFS filesystem operations (bnc#1012832). - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x provides an incomplete set of requirements for setattr operations that underspecified removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939). - CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501). - CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacked chunk-length checking for the first chunk, which allowed remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data (bnc#1011685). - CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716). - CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2016-7916: Race condition in the environ_read function in fs/proc/base.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete (bnc#1010467). - CVE-2016-8646: The hash_accept function in crypto/algif_hash.c in the Linux kernel allowed local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data (bnc#1010150). - CVE-2016-8633: drivers/firewire/net.c in the Linux kernel before 4.8.7, in certain unusual hardware configurations, allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833). - CVE-2016-7042: The proc_keys_show function in security/keys/proc.c in the Linux kernel used an incorrect buffer size for certain timeout data, which allowed local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file (bnc#1004517). - CVE-2016-7097: The filesystem implementation in the Linux kernel preserves the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions (bnc#995968). - CVE-2017-5551: The filesystem implementation in the Linux kernel preserves the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions. This CVE tracks the fix for the tmpfs filesystem. (bsc#1021258). - CVE-2015-8956: The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel allowed local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket (bnc#1003925). - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077). - CVE-2016-0823: The pagemap_open function in fs/proc/task_mmu.c in the Linux kernel allowed local users to obtain sensitive physical-address information by reading a pagemap file, aka Android internal bug 25739721 (bnc#994759). - CVE-2016-7425: The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932). - CVE-2016-6828: The tcp_check_send_head function in include/net/tcp.h in the Linux kernel did not properly maintain certain SACK state after a failed data copy, which allowed local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option (bnc#994296). - CVE-2016-6480: Race condition in the ioctl_send_fib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a 'double fetch' vulnerability (bnc#991608). - CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel allowed local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary (bsc#986365). - CVE-2015-7513: arch/x86/kvm/x86.c in the Linux kernel did not reset the PIT counter values during state restoration, which allowed guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions (bnc#960689). - CVE-2013-4312: The Linux kernel allowed local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c (bnc#839104). - CVE-2016-4997: The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement (bnc#986362). - CVE-2016-5829: Multiple heap-based buffer overflows in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux kernel allow local users to cause a denial of service or possibly have unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call (bnc#986572). - CVE-2016-4470: The key_reject_and_link function in security/keys/key.c in the Linux kernel did not ensure that a certain data structure is initialized, which allowed local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command (bnc#984755). - CVE-2016-5244: The rds_inc_info_copy function in net/rds/recv.c in the Linux kernel did not initialize a certain structure member, which allowed remote attackers to obtain sensitive information from kernel stack memory by reading an RDS message (bnc#983213). - CVE-2016-1583: The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling (bnc#983143). - CVE-2016-4913: The get_rock_ridge_filename function in fs/isofs/rock.c in the Linux kernel mishandled NM (aka alternate name) entries containing \0 characters, which allowed local users to obtain sensitive information from kernel memory or possibly have unspecified other impact via a crafted isofs filesystem (bnc#980725). - CVE-2016-4580: The x25_negotiate_facilities function in net/x25/x25_facilities.c in the Linux kernel did not properly initialize a certain data structure, which allowed attackers to obtain sensitive information from kernel stack memory via an X.25 Call Request (bnc#981267). - CVE-2016-4805: Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel allowed local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions (bnc#980371). - CVE-2015-7833: The usbvision driver in the Linux kernel allowed physically proximate attackers to cause a denial of service (panic) via a nonzero bInterfaceNumber value in a USB device descriptor (bnc#950998). - CVE-2016-2187: The gtco_probe function in drivers/input/tablet/gtco.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#971944). - CVE-2016-4482: The proc_connectinfo function in drivers/usb/core/devio.c in the Linux kernel did not initialize a certain data structure, which allowed local users to obtain sensitive information from kernel stack memory via a crafted USBDEVFS_CONNECTINFO ioctl call (bnc#978401). - CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel incorrectly relies on the write system call, which allowed local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a uAPI interface (bnc#979548). - CVE-2016-4485: The llc_cmsg_rcv function in net/llc/af_llc.c in the Linux kernel did not initialize a certain data structure, which allowed attackers to obtain sensitive information from kernel stack memory by reading a message (bnc#978821). - CVE-2016-4578: sound/core/timer.c in the Linux kernel did not initialize certain r1 data structures, which allowed local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions (bnc#979879). - CVE-2016-4569: The snd_timer_user_params function in sound/core/timer.c in the Linux kernel did not initialize a certain data structure, which allowed local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface (bnc#979213). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 96903
    published 2017-01-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96903
    title SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0333-1)
  • NASL family PhotonOS Local Security Checks
    NASL id PHOTONOS_PHSA-2017-0001_LINUX.NASL
    description An update of the linux package has been released.
    last seen 2019-02-08
    modified 2019-02-07
    plugin id 121664
    published 2019-02-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=121664
    title Photon OS 1.0: Linux PHSA-2017-0001
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0437-1.NASL
    description The SUSE Linux Enterprise 11 SP4 kernel was updated to 3.0.101-94 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5551: tmpfs: clear S_ISGID when setting posix ACLs (bsc#1021258). - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device NOTE: this vulnerability existed because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2016-5696: TCP, when using a large Window Size, made it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP (bnc#989152). - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x provided an incomplete set of requirements for setattr operations that underspecified removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939). - CVE-2016-8632: The tipc_msg_build function in net/tipc/msg.c in the Linux kernel did not validate the relationship between the minimum fragment length and the maximum packet size, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability (bnc#1008831). - CVE-2016-8399: An elevation of privilege vulnerability in the kernel networking subsystem could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Moderate because it first requires compromising a privileged process and current compiler optimizations restrict access to the vulnerable code. (bnc#1014746). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531). - CVE-2012-6704: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option (bnc#1013542). - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038). - CVE-2016-9685: Multiple memory leaks in error paths in fs/xfs/xfs_attr_list.c in the Linux kernel allowed local users to cause a denial of service (memory consumption) via crafted XFS filesystem operations (bnc#1012832). - CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501). - CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacked chunk-length checking for the first chunk, which allowed remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data (bnc#1011685). - CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716). - CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711). - CVE-2013-6368: The KVM subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (system crash) via a VAPIC synchronization operation involving a page-end address (bnc#853052). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2016-7916: Race condition in the environ_read function in fs/proc/base.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete (bnc#1010467). - CVE-2016-8646: The hash_accept function in crypto/algif_hash.c in the Linux kernel allowed local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data (bnc#1010150). - CVE-2016-8633: drivers/firewire/net.c in the Linux kernel, in certain unusual hardware configurations, allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 97097
    published 2017-02-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97097
    title SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0437-1)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-772.NASL
    description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2012-6704, CVE-2016-9793 Eric Dumazet found that a local user with CAP_NET_ADMIN capability could set a socket's buffer size to be negative, leading to a denial of service or other security impact. Additionally, in kernel versions prior to 3.5, any user could do this if sysctl net.core.rmem_max was changed to a very large value. CVE-2015-1350 / #770492 Ben Harris reported that local users could remove set-capability attributes from any file visible to them, allowing a denial of service. CVE-2015-8962 Calvin Owens fouund that removing a SCSI device while it was being accessed through the SCSI generic (sg) driver led to a double- free, possibly causing a denial of service (crash or memory corruption) or privilege escalation. This could be exploited by local users with permision to access a SCSI device node. CVE-2015-8963 Sasha Levin reported that hot-unplugging a CPU resulted in a use-after-free by the performance events (perf) subsystem, possibly causing a denial of service (crash or memory corruption) or privilege escalation. This could by exploited by any local user. CVE-2015-8964 It was found that the terminal/serial (tty) subsystem did not reliably reset the terminal buffer state when the terminal line discipline was changed. This could allow a local user with access to a terminal device to read sensitive information from kernel memory. CVE-2016-7097 Jan Kara found that changing the POSIX ACL of a file never cleared its set-group-ID flag, which should be done if the user changing it is not a member of the group-owner. In some cases, this would allow the user-owner of an executable to gain the privileges of the group-owner. CVE-2016-7910 Vegard Nossum discovered that a memory allocation failure while handling a read of /proc/diskstats or /proc/partitions could lead to a use-after-free, possibly causing a denial of service (crash or memory corruption) or privilege escalation. CVE-2016-7911 Dmitry Vyukov reported that a race between ioprio_get() and ioprio_set() system calls could result in a use-after-free, possibly causing a denial of service (crash) or leaking sensitive information. CVE-2016-7915 Benjamin Tissoires found that HID devices could trigger an out-of- bounds memory access in the HID core. A physically present user could possibly use this for denial of service (crash) or to leak sensitive information. CVE-2016-8399 Qidan He reported that the IPv4 ping socket implementation did not validate the length of packets to be sent. A user with permisson to use ping sockets could cause an out-of-bounds read, possibly resulting in a denial of service or information leak. However, on Debian systems no users have permission to create ping sockets by default. CVE-2016-8633 Eyal Itkin reported that the IP-over-Firewire driver (firewire-net) did not validate the offset or length in link-layer fragmentation headers. This allowed a remote system connected by Firewire to write to memory after a packet buffer, leading to a denial of service (crash) or remote code execution. CVE-2016-8645 Marco Grassi reported that if a socket filter (BPF program) attached to a TCP socket truncates or removes the TCP header, this could cause a denial of service (crash). This was exploitable by any local user. CVE-2016-8655 Philip Pettersson found that the implementation of packet sockets (AF_PACKET family) had a race condition between enabling a transmit ring buffer and changing the version of buffers used, which could result in a use-after-free. A local user with the CAP_NET_ADMIN capability could exploit this for privilege escalation. CVE-2016-9178 Al Viro found that a failure to read data from user memory might lead to a information leak on the x86 architecture (amd64 or i386). CVE-2016-9555 Andrey Konovalov reported that the SCTP implementation does not validate 'out of the blue' packet chunk lengths early enough. A remote system able could use this to cause a denial of service (crash) or other security impact for systems using SCTP. CVE-2016-9576, CVE-2016-10088 Dmitry Vyukov reported that using splice() with the SCSI generic driver led to kernel memory corruption. Local users with permision to access a SCSI device node could exploit this for privilege escalation. CVE-2016-9756 Dmitry Vyukov reported that KVM for the x86 architecture (amd64 or i386) did not correctly handle the failure of certain instructions that require software emulation on older processors. This could be exploited by guest systems to leak sensitive information or for denial of service (log spam). CVE-2016-9794 Baozeng Ding reported a race condition in the ALSA (sound) subsystem that could result in a use-after-free. Local users with access to a PCM sound device could exploit this for denial of service (crash or memory corruption) or other security impact. For Debian 7 'Wheezy', these problems have been fixed in version 3.2.84-1. This version also includes bug fixes from upstream version 3.2.84 and updates the PREEMPT_RT featureset to version 3.2.84-rt122. Finally, this version adds the option to mitigate security issues in the performance events (perf) subsystem by disabling use by unprivileged users. This can be done by setting sysctl kernel.perf_event_paranoid=3. For Debian 8 'Jessie', these problems have been fixed in version 3.16.39-1 which will be included in the next point release (8.6). We recommend that you upgrade your linux packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-07-09
    plugin id 96188
    published 2017-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96188
    title Debian DLA-772-1 : linux security update
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0464-1.NASL
    description The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.69 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501). - CVE-2015-8963: Race condition in kernel/events/core.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect handling of an swevent data structure during a CPU unplug operation (bnc#1010502). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716). - CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711). - CVE-2016-7913: The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure (bnc#1010478). - CVE-2016-7914: The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel did not check whether a slot is a leaf, which allowed local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite (bnc#1010475). - CVE-2016-8399: An elevation of privilege vulnerability in the kernel networking subsystem could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Moderate because it first requires compromising a privileged process and current compiler optimizations restrict access to the vulnerable code. Product: Android. Versions: Kernel-3.10, Kernel-3.18. Android ID: A-31349935 (bnc#1014746). - CVE-2016-8633: drivers/firewire/net.c in the Linux kernel, in certain unusual hardware configurations, allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833). - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb truncation, which allowed local users to cause a denial of service (system crash) via a crafted application that made sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969). - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux kernel allowed local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine confusion bug' (bnc#1007197). - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the Linux kernel misuses the kzalloc function, which allowed local users to cause a denial of service (integer overflow) or have unspecified other impact by leveraging access to a vfio PCI device file (bnc#1007197). - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531 1013542). - CVE-2016-9806: Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel allowed local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that made sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated (bnc#1013540 1017589). - CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt (bsc#1019851). - CVE-2017-2583: Fixed broken emulation of 'MOV SS, null selector' (bsc#1020602). - CVE-2017-5551: Clear SGID bit when setting file permissions on tmpfs (bsc#1021258). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 97189
    published 2017-02-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97189
    title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0464-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0004.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306361] (CVE-2016-7042) - nvme: Limit command retries (Keith Busch) [Orabug: 25374751] - fs/proc/task_mmu.c: fix mm_access mode parameter in pagemap_read (Kenny Keslar) [Orabug: 25374977] - tcp: fix use after free in tcp_xmit_retransmit_queue (Eric Dumazet) [Orabug: 25374364] (CVE-2016-6828) - tunnels: Don't apply GRO to multiple layers of encapsulation. (Jesse Gross) [Orabug: 25036352] (CVE-2016-8666) - i40e: Don't notify client(s) for DCB changes on all VSIs (Neerav Parikh) [Orabug: 25046290] - packet: fix race condition in packet_set_ring (Philip Pettersson) [Orabug: 25231617] (CVE-2016-8655) - netlink: Fix dump skb leak/double free (Herbert Xu) [Orabug: 25231692] (CVE-2016-9806) - ALSA: pcm : Call kill_fasync in stream lock (Takashi Iwai) [Orabug: 25231720] (CVE-2016-9794) - net: avoid signed overflows for SO_[SND|RCV]BUFFORCE (Eric Dumazet) [Orabug: 25231751] (CVE-2016-9793) - rebuild bumping release
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 96517
    published 2017-01-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96517
    title OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0004)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0006.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - nvme: Limit command retries (Ashok Vairavan) [Orabug: 25342947] - tcp: fix use after free in tcp_xmit_retransmit_queue (Eric Dumazet) [Orabug: 25374376] (CVE-2016-6828) - ALSA: pcm : Call kill_fasync in stream lock (Takashi Iwai) [Orabug: 25231728] (CVE-2016-9794) - net: avoid signed overflows for SO_[SND|RCV]BUFFORCE (Eric Dumazet) [Orabug: 25231758] (CVE-2016-9793) - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306377] (CVE-2016-7042)
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 96519
    published 2017-01-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96519
    title OracleVM 3.2 : Unbreakable / etc (OVMSA-2017-0006)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3168-2.NASL
    description USN-3168-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793) Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794) Baozeng Ding discovered a double free in the netlink_dump() function in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9806). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96438
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96438
    title Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3168-2)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-1842-1.NASL
    description The remote Oracle Linux host is missing a security update for the kernel package(s).
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 102511
    published 2017-08-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=102511
    title Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3169-3.NASL
    description Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96441
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96441
    title Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3169-3)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0181-1.NASL
    description The SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.38 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x provides an incomplete set of requirements for setattr operations that underspecifies removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2016-7039: The IP stack in the Linux kernel allowed remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for large crafted packets, as demonstrated by packets that contain only VLAN headers, a related issue to CVE-2016-8666 (bnc#1001486). - CVE-2016-7042: The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allowed local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file (bnc#1004517). - CVE-2016-7425: The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932). - CVE-2016-7913: The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure (bnc#1010478). - CVE-2016-7917: The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel did not check whether a batch message's length field is large enough, which allowed local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability (bnc#1010444). - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb truncation, which allowed local users to cause a denial of service (system crash) via a crafted application that made sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969). - CVE-2016-8666: The IP stack in the Linux kernel allowed remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for packets with tunnel stacking, as demonstrated by interleaved IPv4 headers and GRE headers, a related issue to CVE-2016-7039 (bnc#1003964). - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux kernel allowed local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine confusion bug (bnc#1007197). - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the Linux kernel misuses the kzalloc function, which allowed local users to cause a denial of service (integer overflow) or have unspecified other impact by leveraging access to a vfio PCI device file (bnc#1007197). - CVE-2016-9793: A bug in SO_{SND|RCV}BUFFORCE setsockopt() implementation was fixed, which allowed CAP_NET_ADMIN users to cause memory corruption. (bsc#1013531). - CVE-2016-9919: The icmp6_send function in net/ipv6/icmp.c in the Linux kernel omits a certain check of the dst data structure, which allowed remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet (bnc#1014701). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 96603
    published 2017-01-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96603
    title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0181-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-0933-1.NASL
    description Description of changes: - [3.10.0-514.16.1.0.1.el7.OL7] - [ipc] ipc/sem.c: bugfix for semctl(,,GETZCNT) (Manfred Spraul) [orabug 22552377] - Oracle Linux certificates (Alexey Petrenko) - Oracle Linux RHCK Module Signing Key was compiled into kernel (olkmod_signing_key.x509)(alexey.petrenko at oracle.com) - Update x509.genkey [bug 24817676] [3.10.0-514.16.1.el7] - [tty] n_hdlc: get rid of racy n_hdlc.tbuf ('Herton R. Krzesinski') [1429919 1429920] {CVE-2017-2636} - [md] dm rq: cope with DM device destruction while in dm_old_request_fn() (Mike Snitzer) [1430334 1412854] - [fs] nfs: Fix inode corruption in nfs_prime_dcache() (Benjamin Coddington) [1429514 1416532] - [fs] nfs: Don't let readdirplus revalidate an inode that was marked as stale (Benjamin Coddington) [1429514 1416532] - [block] Copy a user iovec if it includes gaps (Jeff Moyer) [1429508 1421263] - [kernel] percpu-refcount: fix reference leak during percpu-atomic transition (Jeff Moyer) [1429507 1418333] - [powerpc] eeh: eeh_pci_enable(): fix checking of post-request state (Steve Best) [1425538 1383670] - [s390] mm: handle PTE-mapped tail pages in fast gup (Hendrik Brueckner) [1423438 1391532] - [net] skbuff: Fix skb checksum partial check (Lance Richardson) [1422964 1411480] - [net] skbuff: Fix skb checksum flag on skb pull (Lance Richardson) [1422964 1411480] - [security] selinux: fix off-by-one in setprocattr (Paul Moore) [1422368 1422369] {CVE-2017-2618} - [virtio] balloon: check the number of available pages in leak balloon (David Hildenbrand) [1417194 1401615] - [infiniband] ib/rdmavt: Only put mmap_info ref if it exists (Jonathan Toppins) [1417191 1391299] - [x86] kvm: x86: make lapic hrtimer pinned (Luiz Capitulino) [1416373 1392593] - [kernel] sched/nohz: Fix affine unpinned timers mess (Luiz Capitulino) [1416373 1392593] - [kernel] nohz: Affine unpinned timers to housekeepers (Luiz Capitulino) [1416373 1392593] - [kernel] tick-sched: add housekeeping_mask cpumask (Luiz Capitulino) [1416373 1392593] - [x86] platform/uv/bau: Add UV4-specific functions (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Fix payload queue setup on UV4 hardware (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Disable software timeout on UV4 hardware (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Populate ->uvhub_version with UV4 version information (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Use generic function pointers (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Add generic function pointers (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Convert uv_physnodeaddr() use to uv_gpa_to_offset() (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Clean up pq_init() (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Clean up and update printks (Frank Ramsay) [1414715 1386692] - [x86] platform/uv/bau: Clean up vertical alignment (Frank Ramsay) [1414715 1386692] - [virtio] virtio-pci: alloc only resources actually used (Laurent Vivier) [1413093 1375153] - [net] avoid signed overflows for SO_{SND|RCV}BUFFORCE (Sabrina Dubroca) [1412473 1412474] {CVE-2016-9793} - [netdrv] sfc: clear napi_hash state when copying channels (Jarod Wilson) [1401461 1394304] - [lib] mpi: Fix NULL ptr dereference in mpi_powm() (Mateusz Guzik) [1398457 1398458] {CVE-2016-8650} - [scsi] lpfc: Fix eh_deadline setting for sli3 adapters (Ewan Milne) [1430687 1366564] - [md] dm round robin: revert 'use percpu 'repeat_count' and 'current_path'' (Mike Snitzer) [1430689 1422567] - [md] dm round robin: do not use this_cpu_ptr() without having preemption disabled (Mike Snitzer) [1430689 1422567] - Revert: [x86] Handle non enumerated CPU after physical hotplug (Prarit Bhargava) [1426633 1373738] - Revert: [x86] smp: Don't try to poke disabled/non-existent APIC (Prarit Bhargava) [1426633 1373738] - Revert: [x86] smpboot: Init apic mapping before usage (Prarit Bhargava) [1426633 1373738] - Revert: [x86] revert 'perf/uncore: Disable uncore on kdump kernel' (Prarit Bhargava) [1426633 1373738] - Revert: [x86] perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code (Prarit Bhargava) [1426633 1373738]
    last seen 2019-02-21
    modified 2018-09-17
    plugin id 99386
    published 2017-04-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99386
    title Oracle Linux 7 : kernel (ELSA-2017-0933-1)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-0933.NASL
    description An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. These updated kernel packages include several security issues and numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2986951. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636 and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 99383
    published 2017-04-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99383
    title CentOS 7 : kernel (CESA-2017:0933)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2017-1072.NASL
    description According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650) - A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793) - A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618) - The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the 'dead' type.(CVE-2017-6951) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-14
    plugin id 99938
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99938
    title EulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1072)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3170-2.NASL
    description Andrey Konovalov discovered that the ipv6 icmp implementation in the Linux kernel did not properly check data structures on send. A remote attacker could use this to cause a denial of service (system crash). (CVE-2016-9919) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96444
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96444
    title Ubuntu 16.10 : linux-raspi2 vulnerabilities (USN-3170-2)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3169-4.NASL
    description Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96442
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96442
    title Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3169-4)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0494-1.NASL
    description The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-8970: crypto/algif_skcipher.c in the Linux kernel did not verify that a setkey operation has been performed on an AF_ALG socket before an accept system call is processed, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that did not supply a key, related to the lrw_crypt function in crypto/lrw.c (bnc#1008374). - CVE-2017-5551: Clear S_ISGID on tmpfs when setting posix ACLs (bsc#1021258). - CVE-2016-7097: The filesystem implementation in the Linux kernel preserves the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions (bnc#995968). - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2004-0230: TCP, when using a large Window Size, made it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP (bnc#969340). - CVE-2016-8632: The tipc_msg_build function in net/tipc/msg.c in the Linux kernel did not validate the relationship between the minimum fragment length and the maximum packet size, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability (bnc#1008831). - CVE-2016-8399: An elevation of privilege vulnerability in the kernel networking subsystem could have enabled a local malicious application to execute arbitrary code within the context of the kernel bnc#1014746). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531). - CVE-2012-6704: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option (bnc#1013542). - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038). - CVE-2016-3841: The IPv6 stack in the Linux kernel mishandled options data, which allowed local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call (bnc#992566). - CVE-2016-9685: Multiple memory leaks in error paths in fs/xfs/xfs_attr_list.c in the Linux kernel allowed local users to cause a denial of service (memory consumption) via crafted XFS filesystem operations (bnc#1012832). - CVE-2015-1350: The VFS subsystem in the Linux kernel provided an incomplete set of requirements for setattr operations that underspecifies removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939). - CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501). - CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacked chunk-length checking for the first chunk, which allowed remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data (bnc#1011685). - CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716). - CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2016-7916: Race condition in the environ_read function in fs/proc/base.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete (bnc#1010467). - CVE-2016-8646: The hash_accept function in crypto/algif_hash.c in the Linux kernel allowed local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data (bnc#1010150). - CVE-2016-8633: drivers/firewire/net.c in the Linux kernel in certain unusual hardware configurations allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833). - CVE-2016-7042: The proc_keys_show function in security/keys/proc.c in the Linux, when the GNU Compiler Collection (gcc) stack protector is enabled, used an incorrect buffer size for certain timeout data, which allowed local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file (bnc#1004517). - CVE-2015-8956: The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel allowed local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket (bnc#1003925). - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077). - CVE-2016-0823: The pagemap_open function in fs/proc/task_mmu.c in the Linux kernel allowed local users to obtain sensitive physical-address information by reading a pagemap file (bnc#994759). - CVE-2016-7425: The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932). - CVE-2016-6828: The tcp_check_send_head function in include/net/tcp.h in the Linux kernel did not properly maintain certain SACK state after a failed data copy, which allowed local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option (bnc#994296). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 97297
    published 2017-02-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97297
    title SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0494-1)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZLSA-2017-0933.NASL
    description An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. These updated kernel packages include several security issues and numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2986951. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636 and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering). Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-20
    plugin id 101449
    published 2017-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101449
    title Virtuozzo 7 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0933)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-0933.NASL
    description From Red Hat Security Advisory 2017:0933 : An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. These updated kernel packages include several security issues and numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2986951. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636 and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering).
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 99333
    published 2017-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99333
    title Oracle Linux 7 : kernel (ELSA-2017-0933)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2017-1071.NASL
    description According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650) - A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793) - A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618) - The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the 'dead' type.(CVE-2017-6951) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-14
    plugin id 99937
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99937
    title EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1071)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3169-1.NASL
    description Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793) Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96439
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96439
    title Ubuntu 16.04 LTS : linux vulnerabilities (USN-3169-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-5CB5B4082D.NASL
    description The 4.8.13 stable kernel update contains a number of important fixes across the tree. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 95727
    published 2016-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95727
    title Fedora 24 : kernel (2016-5cb5b4082d)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3508.NASL
    description Description of changes: kernel-uek [4.1.12-61.1.25.el7uek] - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306361] {CVE-2016-7042} - nvme: Limit command retries (Keith Busch) [Orabug: 25374751] - fs/proc/task_mmu.c: fix mm_access() mode parameter in pagemap_read() (Kenny Keslar) [Orabug: 25374977] - tcp: fix use after free in tcp_xmit_retransmit_queue() (Eric Dumazet) [Orabug: 25374364] {CVE-2016-6828} - tunnels: Don't apply GRO to multiple layers of encapsulation. (Jesse Gross) [Orabug: 25036352] {CVE-2016-8666} - i40e: Don't notify client(s) for DCB changes on all VSIs (Neerav Parikh) [Orabug: 25046290] - packet: fix race condition in packet_set_ring (Philip Pettersson) [Orabug: 25231617] {CVE-2016-8655} - netlink: Fix dump skb leak/double free (Herbert Xu) [Orabug: 25231692] {CVE-2016-9806} - ALSA: pcm : Call kill_fasync() in stream lock (Takashi Iwai) [Orabug: 25231720] {CVE-2016-9794} - net: avoid signed overflows for SO_{SND|RCV}BUFFORCE (Eric Dumazet) [Orabug: 25231751] {CVE-2016-9793}
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 96477
    published 2017-01-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96477
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3508)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-5AFF4A6BBC.NASL
    description The 4.8.13 stable kernel update contains a number of important fixes across the tree. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 95778
    published 2016-12-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95778
    title Fedora 23 : kernel (2016-5aff4a6bbc)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170412_KERNEL_ON_SL7_X.NASL
    description Security Fix(es) : - A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) - A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) - A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non- namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) - A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate)
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 99351
    published 2017-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99351
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZA-2017-029.NASL
    description According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - It was found that keyctl_set_reqkey_keyring() function leaked thread keyring which could allow an unprivileged local user to exhaust kernel memory. - net/sctp/socket.c in the Linux kernel through 4.10.1 did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. - Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 could allow local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peeled off an association in a certain buffer-full state. - Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). - A vulnerability was discovered in the handling of pid namespaces in the kernel. A privileged user inside a container could trigger a kernel crash (NULL pointer dereference in proc_flush_task()) using a sequence of system calls including wait4(). Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2019-01-14
    plugin id 99599
    published 2017-04-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99599
    title Virtuozzo 7 : readykernel-patch (VZA-2017-029)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2017-782.NASL
    description A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650) The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device. (CVE-2016-9576) The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option. (CVE-2016-9793) A flaw was found in the Linux networking subsystem where a local attacker with CAP_NET_ADMIN capabilities could cause an out of bounds read by creating a smaller-than-expected ICMP header and sending to its destination via sendto(). (CVE-2016-8399) Algorithms not compatible with mcryptd could be spawned by mcryptd with a direct crypto_alloc_tfm invocation using a 'mcryptd(alg)' name construct. This causes mcryptd to crash the kernel if an arbitrary 'alg' is incompatible and not intended to be used with mcryptd. (CVE-2016-10147) (Updated on 2017-01-19: CVE-2016-8399 was fixed in this release but was previously not part of this errata.) (Updated on 2017-02-22: CVE-2016-10147 was fixed in this release but was previously not part of this errata.)
    last seen 2019-02-21
    modified 2018-04-18
    plugin id 96284
    published 2017-01-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96284
    title Amazon Linux AMI : kernel (ALAS-2017-782)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-245.NASL
    description The openSUSE 42.2 kernel was updated to 4.4.42 stable release. The following security bugs were fixed : - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077 1003253). - CVE-2017-5576, CVE-2017-5577: A buffer overflow in the VC4_SUBMIT_CL IOCTL in the VideoCore DRM driver for Raspberry Pi was fixed. (bsc#1021294) - CVE-2017-5551: tmpfs: Fixed a bug that could have allowed users to set setgid bits on files they don't down. (bsc#1021258). - CVE-2017-2583: A Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support was vulnerable to an incorrect segment selector(SS) value error. A user/process inside guest could have used this flaw to crash the guest resulting in DoS or potentially escalate their privileges inside guest. (bsc#1020602). - CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt (bnc#1019851). - CVE-2015-8709: ** DISPUTED ** kernel/ptrace.c in the Linux kernel mishandled uid and gid mappings, which allowed local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states 'there is no kernel bug here (bnc#959709 bsc#960561). - CVE-2016-9806: Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel allowed local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that made sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated (bnc#1013540 1017589). - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb truncation, which allowed local users to cause a denial of service (system crash) via a crafted application that made sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531 bsc#1013542). - CVE-2016-9919: The icmp6_send function in net/ipv6/icmp.c in the Linux kernel omits a certain check of the dst data structure, which allowed remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet (bnc#1014701). The following non-security bugs were fixed : - 8250/fintek: rename IRQ_MODE macro (boo#1009546). - acpi, nfit: fix bus vs dimm confusion in xlat_status (bsc#1023175). - acpi, nfit, libnvdimm: fix / harden ars_status output length handling (bsc#1023175). - acpi, nfit: validate ars_status output buffer size (bsc#1023175). - arm64/numa: fix incorrect log for memory-less node (bsc#1019631). - ASoC: cht_bsw_rt5645: Fix leftover kmalloc (bsc#1010690). - ASoC: Intel: bytcr_rt5640: fallback mechanism if MCLK is not enabled (bsc#1010690). - ASoC: rt5670: add HS ground control (bsc#1016250). - avoid including 'mountproto=' with no protocol in /proc/mounts (bsc#1019260). - bcache: Make gc wakeup sane, remove set_task_state() (bsc#1021260). - bcache: partition support: add 16 minors per bcacheN device (bsc#1019784). - blacklist.conf: add 1b8d2afde54f libnvdimm, pfn: fix ARCH=alpha allmodconfig build failure (bsc#1023175). - blacklist.conf: Add i915 stable commits that can be ignored (bsc#1015367) - blk: Do not collide with QUEUE_FLAG_WC from upstream (bsc#1022547) - blk-mq: Allow timeouts to run while queue is freezing (bsc#1020817). - blk-mq: Always schedule hctx->next_cpu (bsc#1020817). - blk-mq: Avoid memory reclaim when remapping queues (bsc#1020817). - blk-mq: do not overwrite rq->mq_ctx (bsc#1020817). - blk-mq: Fix failed allocation path when mapping queues (bsc#1020817). - blk-mq: improve warning for running a queue on the wrong CPU (bsc#1020817). - block: Change extern inline to static inline (bsc#1023175). - Bluetooth: btmrvl: fix hung task warning dump (bsc#1018813). - bnx2x: Correct ringparam estimate when DOWN (bsc#1020214). - brcmfmac: Change error print on wlan0 existence (bsc#1000092). - btrfs: add support for RENAME_EXCHANGE and RENAME_WHITEOUT (bsc#1020975). - btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl (bsc#1018100). - btrfs: fix inode leak on failure to setup whiteout inode in rename (bsc#1020975). - btrfs: fix lockdep warning about log_mutex (bsc#1021455). - btrfs: fix lockdep warning on deadlock against an inode's log mutex (bsc#1021455). - btrfs: fix number of transaction units for renames with whiteout (bsc#1020975). - btrfs: incremental send, fix invalid paths for rename operations (bsc#1018316). - btrfs: incremental send, fix premature rmdir operations (bsc#1018316). - btrfs: increment ctx->pos for every emitted or skipped dirent in readdir (bsc#981709). - btrfs: pin log earlier when renaming (bsc#1020975). - btrfs: pin logs earlier when doing a rename exchange operation (bsc#1020975). - btrfs: remove old tree_root dirent processing in btrfs_real_readdir() (bsc#981709). - btrfs: send, add missing error check for calls to path_loop() (bsc#1018316). - btrfs: send, avoid incorrect leaf accesses when sending utimes operations (bsc#1018316). - btrfs: send, fix failure to move directories with the same name around (bsc#1018316). - btrfs: send, fix invalid leaf accesses due to incorrect utimes operations (bsc#1018316). - btrfs: send, fix warning due to late freeing of orphan_dir_info structures (bsc#1018316). - btrfs: test_check_exists: Fix infinite loop when searching for free space entries (bsc#987192). - btrfs: unpin log if rename operation fails (bsc#1020975). - btrfs: unpin logs if rename exchange operation fails (bsc#1020975). - [BZ 149851] kernel: Fix invalid domain response handling (bnc#1009718, LTC#149851). - ceph: fix bad endianness handling in parse_reply_info_extra (bsc#1020488). - clk: xgene: Add PMD clock (bsc#1019351). - clk: xgene: Do not call __pa on ioremaped address (bsc#1019351). - clk: xgene: Remove CLK_IS_ROOT (bsc#1019351). - config: enable Ceph kernel client modules for ppc64le (fate#321098) - config: enable Ceph kernel client modules for s390x (fate#321098) - config: enable CONFIG_OCFS2_DEBUG_MASKLOG for ocfs2 (bsc#1015038) - crypto: drbg - do not call drbg_instantiate in healt test (bsc#1018913). - crypto: drbg - remove FIPS 140-2 continuous test (bsc#1018913). - crypto: FIPS - allow tests to be disabled in FIPS mode (bsc#1018913). - crypto: qat - fix bar discovery for c62x (bsc#1021251). - crypto: qat - zero esram only for DH85x devices (1021248). - crypto: rsa - allow keys >= 2048 bits in FIPS mode (bsc#1018913). - crypto: xts - consolidate sanity check for keys (bsc#1018913). - crypto: xts - fix compile errors (bsc#1018913). - cxl: fix potential NULL dereference in free_adapter() (bsc#1016517). - dax: fix deadlock with DAX 4k holes (bsc#1012829). - dax: fix device-dax region base (bsc#1023175). - device-dax: check devm_nsio_enable() return value (bsc#1023175). - device-dax: fail all private mapping attempts (bsc#1023175). - device-dax: fix percpu_ref_exit ordering (bsc#1023175). - driver core: fix race between creating/querying glue dir and its cleanup (bnc#1008742). - drivers:hv: balloon: account for gaps in hot add regions (fate#320485). - drivers:hv: balloon: Add logging for dynamic memory operations (fate#320485). - drivers:hv: balloon: Disable hot add when CONFIG_MEMORY_HOTPLUG is not set (fate#320485). - drivers:hv: balloon: Fix info request to show max page count (fate#320485). - drivers:hv: balloon: keep track of where ha_region starts (fate#320485). - drivers:hv: balloon: replace ha_region_mutex with spinlock (fate#320485). - drivers:hv: balloon: Use available memory value in pressure report (fate#320485). - drivers:hv: cleanup vmbus_open() for wrap around mappings (fate#320485). - drivers:hv: do not leak memory in vmbus_establish_gpadl() (fate#320485). - drivers:hv: get rid of id in struct vmbus_channel (fate#320485). - drivers:hv: get rid of redundant messagecount in create_gpadl_header() (fate#320485). - drivers:hv: get rid of timeout in vmbus_open() (fate#320485). - drivers:hv: Introduce a policy for controlling channel affinity (fate#320485). - drivers:hv: make VMBus bus ids persistent (fate#320485). - drivers:hv: ring_buffer: count on wrap around mappings in get_next_pkt_raw() (v2) (fate#320485). - drivers:hv: ring_buffer: use wrap around mappings in hv_copy{from, to}_ringbuffer() (fate#320485). - drivers:hv: ring_buffer: wrap around mappings for ring buffers (fate#320485). - drivers:hv: utils: Check VSS daemon is listening before a hot backup (fate#320485). - drivers:hv: utils: Continue to poll VSS channel after handling requests (fate#320485). - drivers:hv: utils: fix a race on userspace daemons registration (bnc#1014392). - drivers:hv: utils: Fix the mapping between host version and protocol to use (fate#320485). - drivers:hv: utils: reduce HV_UTIL_NEGO_TIMEOUT timeout (fate#320485). - drivers:hv: vmbus: Base host signaling strictly on the ring state (fate#320485). - drivers:hv: vmbus: Enable explicit signaling policy for NIC channels (fate#320485). - drivers:hv: vmbus: finally fix hv_need_to_signal_on_read() (fate#320485, bug#1018385). - drivers:hv: vmbus: fix the race when querying & updating the percpu list (fate#320485). - drivers:hv: vmbus: Implement a mechanism to tag the channel for low latency (fate#320485). - drivers: hv: vmbus: Make mmio resource local (fate#320485). - drivers:hv: vmbus: On the read path cleanup the logic to interrupt the host (fate#320485). - drivers:hv: vmbus: On write cleanup the logic to interrupt the host (fate#320485). - drivers:hv: vmbus: Reduce the delay between retries in vmbus_post_msg() (fate#320485). - drivers:hv: vmbus: suppress some 'hv_vmbus: Unknown GUID' warnings (fate#320485). - drivers:hv: vss: Improve log messages (fate#320485). - drivers:hv: vss: Operation timeouts should match host expectation (fate#320485). - drivers: net: phy: mdio-xgene: Add hardware dependency (bsc#1019351). - drivers: net: phy: xgene: Fix 'remove' function (bsc#1019351). - drivers: net: xgene: Add change_mtu function (bsc#1019351). - drivers: net: xgene: Add flow control configuration (bsc#1019351). - drivers: net: xgene: Add flow control initialization (bsc#1019351). - drivers: net: xgene: Add helper function (bsc#1019351). - drivers: net: xgene: Add support for Jumbo frame (bsc#1019351). - drivers: net: xgene: Configure classifier with pagepool (bsc#1019351). - drivers: net: xgene: fix build after change_mtu function change (bsc#1019351). - drivers: net: xgene: fix: Coalescing values for v2 hardware (bsc#1019351). - drivers: net: xgene: fix: Disable coalescing on v1 hardware (bsc#1019351). - drivers: net: xgene: Fix MSS programming (bsc#1019351). - drivers: net: xgene: fix: RSS for non-TCP/UDP (bsc#1019351). - drivers: net: xgene: fix: Use GPIO to get link status (bsc#1019351). - drivers: net: xgene: uninitialized variable in xgene_enet_free_pagepool() (bsc#1019351). - drm: Fix broken VT switch with video=1366x768 option (bsc#1018358). - drm/i915: add helpers for platform specific revision id range checks (bsc#1015367). - drm/i915: Apply broader WaRsDisableCoarsePowerGating for guc also (bsc#1015367). - drm/i915/bxt: add revision id for A1 stepping and use it (bsc#1015367). - drm/i915: Call intel_dp_mst_resume() before resuming displays (bsc#1015359). - drm/i915: Cleaning up DDI translation tables (bsc#1014392). - drm/i915: Clean up L3 SQC register field definitions (bsc#1014392). - drm/i915: Do not init hpd polling for vlv and chv from runtime_suspend() (bsc#1014120). - drm-i915-dp-Restore-PPS-HW-state-from-the-encoder-re - drm/i915/dp: Restore PPS HW state from the encoder resume hook (bsc#1019061). - drm/i915/dsi: fix CHV dsi encoder hardware state readout on port C (bsc#1015367). - drm/i915: Exit cherryview_irq_handler() after one pass (bsc#1015367). - drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2 (bsc#1014392). - drm/i915: Fix system resume if PCI device remained enabled (bsc#1015367). - drm/i915: Fix watermarks for VLV/CHV (bsc#1011176). - drm/i915: Force ringbuffers to not be at offset 0 (bsc#1015367). - drm/i915: Force VDD off on the new power seqeuencer before starting to use it (bsc#1009674). - drm/i915/gen9: Add WaInPlaceDecompressionHang (bsc#1014392). - drm/i915/gen9: Fix PCODE polling during CDCLK change notification (bsc#1015367). - drm/i915: Mark CPU cache as dirty when used for rendering (bsc#1015367). - drm/i915: Mark i915_hpd_poll_init_work as static (bsc#1014120). - drm-i915-Prevent-PPS-stealing-from-a-normal-DP-port - drm/i915: Prevent PPS stealing from a normal DP port on VLV/CHV (bsc#1019061). - drm/i915: remove parens around revision ids (bsc#1015367). - drm/i915/skl: Add WaDisableGafsUnitClkGating (bsc#1014392). - drm/i915/skl: Fix rc6 based gpu/system hang (bsc#1015367). - drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs (bsc#1015367). - drm/i915/skl: Update DDI translation tables for SKL (bsc#1014392). - drm/i915/skl: Update watermarks before the crtc is disabled (bsc#1015367). - drm/i915: Update Skylake DDI translation table for DP (bsc#1014392). - drm/i915: Update Skylake DDI translation table for HDMI (bsc#1014392). - drm/i915/userptr: Hold mmref whilst calling get-user-pages (bsc#1015367). - drm/i915/vlv: Prevent enabling hpd polling in late suspend (bsc#1014120). - drm/i915: Workaround for DP DPMS D3 on Dell monitor (bsc#1019061). - drm: Use u64 for intermediate dotclock calculations (bnc#1006472). - drm/vc4: Fix an integer overflow in temporary allocation layout (bsc#1021294). - drm/vc4: Return -EINVAL on the overflow checks failing (bsc#1021294). - drm: virtio-gpu: get the fb from the plane state for atomic updates (bsc#1023101). - EDAC, xgene: Fix spelling mistake in error messages (bsc#1019351). - efi/libstub: Move Graphics Output Protocol handling to generic code (bnc#974215). - fbcon: Fix vc attr at deinit (bsc#1000619). - Fix kABI breakage by i2c-designware baytrail fix (bsc#1011913). - Fix kABI breakage by linux/acpi.h inclusion in i8042-x86ia46io.h (bsc#1011660). - gpio: xgene: make explicitly non-modular (bsc#1019351). - gro_cells: mark napi struct as not busy poll candidates (bsc#966191 FATE#320230 bsc#966186 FATE#320228). - hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels() (fate#320485). - hv: change clockevents unbind tactics (fate#320485). - hv: do not reset hv_context.tsc_page on crash (fate#320485, bnc#1007729). - hv_netvsc: add ethtool statistics for tx packet issues (fate#320485). - hv_netvsc: Add handler for physical link speed change (fate#320485). - hv_netvsc: Add query for initial physical link speed (fate#320485). - hv_netvsc: count multicast packets received (fate#320485). - hv_netvsc: dev hold/put reference to VF (fate#320485). - hv_netvsc: fix a race between netvsc_send() and netvsc_init_buf() (fate#320485). - hv_netvsc: fix comments (fate#320485). - hv_netvsc: fix rtnl locking in callback (fate#320485). - hv_netvsc: Implement batching of receive completions (fate#320485). - hv_netvsc: improve VF device matching (fate#320485). - hv_netvsc: init completion during alloc (fate#320485). - hv_netvsc: make device_remove void (fate#320485). - hv_netvsc: make inline functions static (fate#320485). - hv_netvsc: make netvsc_destroy_buf void (fate#320485). - hv_netvsc: make RSS hash key static (fate#320485). - hv_netvsc: make variable local (fate#320485). - hv_netvsc: rearrange start_xmit (fate#320485). - hv_netvsc: refactor completion function (fate#320485). - hv_netvsc: remove excessive logging on MTU change (fate#320485). - hv_netvsc: remove VF in flight counters (fate#320485). - hv_netvsc: report vmbus name in ethtool (fate#320485). - hv_netvsc: simplify callback event code (fate#320485). - hv_netvsc: style cleanups (fate#320485). - hv_netvsc: use ARRAY_SIZE() for NDIS versions (fate#320485). - hv_netvsc: use consume_skb (fate#320485). - hv_netvsc: use kcalloc (fate#320485). - hv_netvsc: use RCU to protect vf_netdev (fate#320485). - hyperv: Fix spelling of HV_UNKOWN (fate#320485). - i2c: designware-baytrail: Disallow the CPU to enter C6 or C7 while holding the punit semaphore (bsc#1011913). - i2c: designware: fix wrong Tx/Rx FIFO for ACPI (bsc#1019351). - i2c: designware: Implement support for SMBus block read and write (bsc#1019351). - i2c: xgene: Fix missing code of DTB support (bsc#1019351). - i40e: Be much more verbose about what we can and cannot offload (bsc#985561). - i915: Delete previous two fixes for i915 (bsc#1019061). These upstream fixes brought some regressions, so better to revert for now. - i915: Disable patches.drivers/drm-i915-Exit-cherryview_irq_handler-aft er-one-pass The patch seems leading to the instability on Wyse box (bsc#1015367). - IB/core: Fix possible memory leak in cma_resolve_iboe_route() (bsc#966191 FATE#320230 bsc#966186 FATE#320228). - IB/mlx5: Fix iteration overrun in GSI qps (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - IB/mlx5: Fix steering resource leak (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - IB/mlx5: Set source mac address in FTE (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - ibmveth: calculate gso_segs for large packets (bsc#1019148). - ibmveth: check return of skb_linearize in ibmveth_start_xmit (bsc#1019148). - ibmveth: consolidate kmalloc of array, memset 0 to kcalloc (bsc#1019148). - ibmveth: set correct gso_size and gso_type (bsc#1019148). - ibmvnic: convert to use simple_open() (bsc#1015416). - ibmvnic: Driver Version 1.0.1 (bsc#1015416). - ibmvnic: drop duplicate header seq_file.h (bsc#1015416). - ibmvnic: fix error return code in ibmvnic_probe() (bsc#1015416). - ibmvnic: Fix GFP_KERNEL allocation in interrupt context (bsc#1015416). - ibmvnic: Fix missing brackets in init_sub_crq_irqs (bsc#1015416). - ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context (bsc#1015416). - ibmvnic: Fix size of debugfs name buffer (bsc#1015416). - ibmvnic: Handle backing device failover and reinitialization (bsc#1015416). - ibmvnic: Start completion queue negotiation at server-provided optimum values (bsc#1015416). - ibmvnic: Unmap ibmvnic_statistics structure (bsc#1015416). - ibmvnic: Update MTU after device initialization (bsc#1015416). - igb: add i211 to i210 PHY workaround (bsc#1009911). - igb: Workaround for igb i210 firmware issue (bsc#1009911). - Input: i8042 - Trust firmware a bit more when probing on X86 (bsc#1011660). - intel_idle: Add KBL support (bsc#1016884). - ipc: msg, make msgrcv work with LONG_MIN (bnc#1005918). - ipc/sem.c: add cond_resched in exit_sme (bsc#979378). - ixgbe: Do not clear RAR entry when clearing VMDq for SAN MAC (bsc#969474 FATE#319812 bsc#969475 FATE#319814). - ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths (bsc#969474 FATE#319812 bsc#969475 FATE#319814). - KABI fix (bsc#1014410). - kABI: protect struct mm_struct (kabi). - kABI: protect struct musb_platform_ops (kabi). - kABI: protect struct task_struct (kabi). - kABI: protect struct user_fpsimd_state (kabi). - kABI: protect struct wake_irq (kabi). - kABI: protect struct xhci_hcd (kabi). - kABI: protect user_namespace include in fs/exec (kabi). - kABI: protect user_namespace include in kernel/ptrace (kabi). - kabi/severities: Ignore changes in drivers/hv - kgraft/iscsi-target: Do not block kGraft in iscsi_np kthread (bsc#1010612, fate#313296). - kgraft/xen: Do not block kGraft in xenbus kthread (bsc#1017410, fate#313296). - libnvdimm, pfn: fix align attribute (bsc#1023175). - locking/pv-qspinlock: Use cmpxchg_release() in __pv_queued_spin_unlock() (bsc#969756). - locking/rtmutex: Prevent dequeue vs. unlock race (bsc#1015212). - locking/rtmutex: Use READ_ONCE() in rt_mutex_owner() (bsc#1015212). - mailbox: xgene-slimpro: Fix wrong test for devm_kzalloc (bsc#1019351). - md-cluster: convert the completion to wait queue (fate#316335). - md-cluster: protect md_find_rdev_nr_rcu with rcu lock (fate#316335). - md: fix refcount problem on mddev when stopping array (bsc#1022304). - md linear: fix a race between linear_add() and linear_congested() (bsc#1018446). - [media] uvcvideo: uvc_scan_fallback() for webcams with broken chain (bsc#1021474). - misc/genwqe: ensure zero initialization (fate#321595). - mmc: sdhci-of-arasan: Remove no-hispd and no-cmd23 quirks for sdhci-arasan4.9a (bsc#1019351). - mm: do not loop on GFP_REPEAT high order requests if there is no reclaim progress (bnc#1013000). - mm, memcg: do not retry precharge charges (bnc#1022559). - mm, page_alloc: fix check for NULL preferred_zone (bnc#971975 VM performance -- page allocator). - mm, page_alloc: fix fast-path race with cpuset update or removal (bnc#971975 VM performance -- page allocator). - mm, page_alloc: fix premature OOM when racing with cpuset mems update (bnc#971975 VM performance -- page allocator). - mm, page_alloc: keep pcp count and list contents in sync if struct page is corrupted (bnc#971975 VM performance -- page allocator). - mm, page_alloc: move cpuset seqcount checking to slowpath (bnc#971975 VM performance -- page allocator). - mwifiex: add missing check for PCIe8997 chipset (bsc#1018813). - mwifiex: fix IBSS data path issue (bsc#1018813). - mwifiex: fix PCIe register information for 8997 chipset (bsc#1018813). - net/af_iucv: do not use paged skbs for TX on HiperSockets (bnc#1020945, LTC#150566). - net: ethernet: apm: xgene: use phydev from struct net_device (bsc#1019351). - net/hyperv: avoid uninitialized variable (fate#320485). - net: icmp6_send should use dst dev to determine L3 domain (bsc#1014701). - net: ipv6: tcp reset, icmp need to consider L3 domain (bsc#1014701). - net/mlx4_en: Fix panic on xmit while port is down (bsc#966191 FATE#320230). - net/mlx5e: Use correct flow dissector key on flower offloading (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - net/mlx5: Fix autogroups groups num not decreasing (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - net/mlx5: Keep autogroups list ordered (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - net: remove useless memset's in drivers get_stats64 (bsc#1019351). - net_sched: fix a typo in tc_for_each_action() (bsc#966170 FATE#320225 bsc#966172 FATE#320226). - netvsc: add rcu_read locking to netvsc callback (fate#320485). - netvsc: fix checksum on UDP IPV6 (fate#320485). - netvsc: reduce maximum GSO size (fate#320485). - netvsc: Remove mistaken udp.h inclusion (fate#320485). - net: xgene: avoid bogus maybe-uninitialized warning (bsc#1019351). - net: xgene: fix backward compatibility fix (bsc#1019351). - net/xgene: fix error handling during reset (bsc#1019351). - net: xgene: move xgene_cle_ptree_ewdn data off stack (bsc#1019351). - nfit: fail DSMs that return non-zero status by default (bsc#1023175). - NFSv4: Cap the transport reconnection timer at 1/2 lease period (bsc#1014410). - NFSv4: Cleanup the setting of the nfs4 lease period (bsc#1014410). - nvdimm: kabi protect nd_cmd_out_size() (bsc#1023175). - nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too (bsc#1020685). - ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock() (bnc#921494). - pci: Add devm_request_pci_bus_resources() (bsc#1019351). - PCI/AER: include header file (bsc#964944,FATE#319965). - pci: generic: Fix pci_remap_iospace() failure path (bsc#1019630). - pci: hv: Allocate physically contiguous hypercall params buffer (fate#320485). - pci: hv: Delete the device earlier from hbus->children for hot-remove (fate#320485). - pci: hv: Fix hv_pci_remove() for hot-remove (fate#320485). - pci: hv: Handle hv_pci_generic_compl() error case (fate#320485). - pci: hv: Handle vmbus_sendpacket() failure in hv_compose_msi_msg() (fate#320485). - pci: hv: Make unnecessarily global IRQ masking functions static (fate#320485). - pci: hv: Remove the unused 'wrk' in struct hv_pcibus_device (fate#320485). - pci: hv: Use list_move_tail() instead of list_del() + list_add_tail() (fate#320485). - pci: hv: Use pci_function_description in struct definitions (fate#320485). - pci: hv: Use the correct buffer size in new_pcichild_device() (fate#320485). - pci: hv: Use zero-length array in struct pci_packet (fate#320485). - pci: xgene: Add local struct device pointers (bsc#1019351). - pci: xgene: Add register accessors (bsc#1019351). - pci: xgene: Free bridge resource list on failure (bsc#1019351). - pci: xgene: Make explicitly non-modular (bsc#1019351). - pci: xgene: Pass struct xgene_pcie_port to setup functions (bsc#1019351). - pci: xgene: Remove unused platform data (bsc#1019351). - pci: xgene: Request host bridge window resources (bsc#1019351). - perf: xgene: Remove bogus IS_ERR() check (bsc#1019351). - phy: xgene: rename 'enum phy_mode' to 'enum xgene_phy_mode' (bsc#1019351). - powerpc/fadump: Fix the race in crash_fadump() (bsc#1022971). - power: reset: xgene-reboot: Unmap region obtained by of_iomap (bsc#1019351). - qeth: check not more than 16 SBALEs on the completion queue (bnc#1009718, LTC#148203). - raid1: ignore discard error (bsc#1017164). - reiserfs: fix race in prealloc discard (bsc#987576). - rpm/kernel-binary.spec.in: Export a make-stderr.log file (bsc#1012422) - rpm/kernel-binary.spec.in: Fix installation of /etc/uefi/certs (bsc#1019594) - rtc: cmos: avoid unused function warning (bsc#1022429). - rtc: cmos: Clear ACPI-driven alarms upon resume (bsc#1022429). - rtc: cmos: Do not enable interrupts in the middle of the interrupt handler (bsc#1022429). - rtc: cmos: Restore alarm after resume (bsc#1022429). - s390/cpuinfo: show maximum thread id (bnc#1009718, LTC#148580). - s390/sysinfo: show partition extended name and UUID if available (bnc#1009718, LTC#150160). - s390/time: LPAR offset handling (bnc#1009718, LTC#146920). - s390/time: move PTFF definitions (bnc#1009718, LTC#146920). - sched: Allow hotplug notifiers to be setup early (bnc#1022476). - sched/core: Fix incorrect utilization accounting when switching to fair class (bnc#1022476). - sched/core: Fix set_user_nice() (bnc#1022476). - sched/core, x86/topology: Fix NUMA in package topology bug (bnc#1022476). - sched/cputime: Add steal time support to full dynticks CPU time accounting (bnc#1022476). - sched/cputime: Fix prev steal time accouting during CPU hotplug (bnc#1022476). - sched/deadline: Always calculate end of period on sched_yield() (bnc#1022476). - sched/deadline: Fix a bug in dl_overflow() (bnc#1022476). - sched/deadline: Fix lock pinning warning during CPU hotplug (bnc#1022476). - sched/deadline: Fix wrap-around in DL heap (bnc#1022476). - sched/fair: Avoid using decay_load_missed() with a negative value (bnc#1022476). - sched/fair: Fix fixed point arithmetic width for shares and effective load (bnc#1022476). - sched/fair: Fix load_above_capacity fixed point arithmetic width (bnc#1022476). - sched/fair: Fix min_vruntime tracking (bnc#1022476). - sched/fair: Fix the wrong throttled clock time for cfs_rq_clock_task() (bnc#1022476). - sched/fair: Improve PELT stuff some more (bnc#1022476). - sched: Make wake_up_nohz_cpu() handle CPUs going offline (bnc#1022476). - sched/rt: Fix PI handling vs. sched_setscheduler() (bnc#1022476). - sched/rt: Kick RT bandwidth timer immediately on start up (bnc#1022476). - sched/rt, sched/dl: Do not push if task's scheduling class was changed (bnc#1022476). - scsi: Add 'AIX VDASD' to blacklist (bsc#1006469). - scsi: bfa: Increase requested firmware version to 3.2.5.1 (bsc#1013273). - scsi_dh_alua: uninitialized variable in alua_rtpg() (bsc#1012910). - scsi: Modify HITACHI OPEN-V blacklist entry (bsc#1006469). - scsi: storvsc: Payload buffer incorrectly sized for 32 bit kernels (fate#320485). - sd: always scan VPD pages if thin provisioning is enabled (bsc#1013792). - serial: 8250_fintek: fix the mismatched IRQ mode (boo#1009546). - serial: 8250: Integrate Fintek into 8250_base (boo#1016979). Update config files to change CONFIG_SERIAL_8250_FINTEK to boolean accordingly, too. Also, the corresponding entry got removed from supported.conf. - ses: Fix SAS device detection in enclosure (bsc#1016403). - sunrpc: Fix reconnection timeouts (bsc#1014410). - sunrpc: fix refcounting problems with auth_gss messages (boo#1011250). - sunrpc: Limit the reconnect backoff timer to the max RPC message timeout (bsc#1014410). - supported.conf: delete xilinx/ll_temac (bsc#1011602) - supported.conf: Support Marvell WiFi/BT SDIO and pinctrl-cherrytrail (bsc#1018813) - target: add XCOPY target/segment desc sense codes (bsc#991273). - target: bounds check XCOPY segment descriptor list (bsc#991273). - target: bounds check XCOPY total descriptor list length (bsc#991273). - target: check for XCOPY parameter truncation (bsc#991273). - target: check XCOPY segment descriptor CSCD IDs (bsc#1017170). - target: return UNSUPPORTED TARGET/SEGMENT DESC TYPE CODE sense (bsc#991273). - target: simplify XCOPY wwn->se_dev lookup helper (bsc#991273). - target: support XCOPY requests without parameters (bsc#991273). - target: use XCOPY segment descriptor CSCD IDs (bsc#1017170). - target: use XCOPY TOO MANY TARGET DESCRIPTORS sense (bsc#991273). - tools: hv: Enable network manager for bonding scripts on RHEL (fate#320485). - tools: hv: fix a compile warning in snprintf (fate#320485). - Tools: hv: kvp: configurable external scripts path (fate#320485). - Tools: hv: kvp: ensure kvp device fd is closed on exec (fate#320485). - tools: hv: remove unnecessary header files and netlink related code (fate#320485). - tools: hv: remove unnecessary link flag (fate#320485). - tty: n_hdlc, fix lockdep false positive (bnc#1015840). - Update metadata for serial fixes (bsc#1013001) - vmbus: make sysfs names consistent with PCI (fate#320485). - x86/hpet: Reduce HPET counter read contention (bsc#1014710). - x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic (fate#320485). - x86/MCE: Dump MCE to dmesg if no consumers (bsc#1013994).
    last seen 2019-02-21
    modified 2017-06-22
    plugin id 97274
    published 2017-02-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97274
    title openSUSE Security Update : the Linux Kernel (openSUSE-2017-245)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3168-1.NASL
    description Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793) Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794) Baozeng Ding discovered a double free in the netlink_dump() function in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9806). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96437
    published 2017-01-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96437
    title Ubuntu 14.04 LTS : linux vulnerabilities (USN-3168-1)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-0933.NASL
    description An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. These updated kernel packages include several security issues and numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2986951. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636 and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 99346
    published 2017-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99346
    title RHEL 7 : kernel (RHSA-2017:0933)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-246.NASL
    description The openSUSE Leap 42.1 kernel to 4.1.38 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077). - CVE-2017-5551: tmpfs: Fixed a bug that could have allowed users to set setgid bits on files they don't down (bsc#1021258). - CVE-2016-10147: crypto/mcryptd.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) by using an AF_ALG socket with an incompatible algorithm, as demonstrated by mcryptd(md5) (bnc#1020381). - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2016-7917: The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel did not check whether a batch message's length field is large enough, which allowed local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability (bnc#1010444). - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb truncation, which allowed local users to cause a denial of service (system crash) via a crafted application that made sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969). - CVE-2016-9806: Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel allowed local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that made sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated (bnc#1013540 1017589). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531 1013542). The following non-security bugs were fixed : - PCI: generic: Fix pci_remap_iospace() failure path (bsc#1019658). - bcache: partition support: add 16 minors per bcacheN device (bsc#1019784). - bnx2x: Correct ringparam estimate when DOWN (bsc#1020214). - clk: xgene: Do not call __pa on ioremaped address (bsc#1019660). - kABI workaround for 4.1.37 mount changes (stable-4.1.37). - kABI: reintroduce sk_filter (bsc#1009969). - kabi/severities: Ignore inode_change_ok change It's renamed in 4.1.37 to setattr_prepare() - mpi: Fix NULL ptr dereference in mpi_powm() [ver #3] (bsc#1011820). - net: introduce __sock_queue_rcv_skb() function (bsc#1009969). - netback: correct array index (bsc#983348). - netfront: do not truncate grant references. - netfront: use correct linear area after linearizing an skb (bsc#1007886). - reiserfs: fix race in prealloc discard (bsc#987576). - rose: limit sk_filter trim to payload (bsc#1009969). - scsi: bfa: Increase requested firmware version to 3.2.5.1 (bsc#1013273). - xenbus: correctly signal errors from xenstored_local_init() (luckily none so far). - xenbus: do not invoke ->is_ready() for most device states (bsc#987333).
    last seen 2019-02-21
    modified 2017-06-22
    plugin id 97138
    published 2017-02-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97138
    title openSUSE Security Update : the Linux Kernel (openSUSE-2017-246)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0057.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 99163
    published 2017-04-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99163
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-107F03CC00.NASL
    description The 4.8.13 stable kernel update contains a number of important fixes across the tree. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 95726
    published 2016-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95726
    title Fedora 25 : kernel (2016-107f03cc00)
  • NASL family PhotonOS Local Security Checks
    NASL id PHOTONOS_PHSA-2017-0001.NASL
    description An update of [openssh,linux,libxml2] packages for PhotonOS has been released.
    last seen 2019-02-21
    modified 2019-02-07
    plugin id 111850
    published 2018-08-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111850
    title Photon OS 1.0: Libxml2 / Linux / Openssh PHSA-2017-0001 (deprecated)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-0932.NASL
    description An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer) resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system. (CVE-2017-6074, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636; Andrey Konovalov (Google) for reporting CVE-2017-6074; and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering). Bug Fix(es) : * The kernel-rt packages have been upgraded to version 3.10.0-514.rt56.219, which provides a number of bug fix updates over the previous version. (BZ# 1429613)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 99345
    published 2017-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99345
    title RHEL 6 : MRG (RHSA-2017:0932)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0005.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - net: avoid signed overflows for SO_[SND|RCV]BUFFORCE (Eric Dumazet) [Orabug: 25203623] (CVE-2016-9793) - nvme: Limit command retries (Ashok Vairavan) [Orabug: 25374794] - tcp: fix use after free in tcp_xmit_retransmit_queue (Eric Dumazet) [Orabug: 25374371] (CVE-2016-6828) - logging errors that get masked to EIO inside drivers/block/loop.c (Manjunath Patil) [Orabug: 22505535] - ALSA: pcm : Call kill_fasync in stream lock (Takashi Iwai) [Orabug: 25203963] (CVE-2016-9794) - packet: fix race condition in packet_set_ring (Philip Pettersson) [Orabug: 25217756] (CVE-2016-8655) - x86: kvmclock: zero initialize pvclock shared memory area (Igor Mammedov) [Orabug: 25218431] - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306373] (CVE-2016-7042)
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 96518
    published 2017-01-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96518
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0005)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3510.NASL
    description Description of changes: [2.6.39-400.294.1.el6uek] - nvme: Limit command retries (Ashok Vairavan) [Orabug: 25342947] - tcp: fix use after free in tcp_xmit_retransmit_queue() (Eric Dumazet) [Orabug: 25374376] {CVE-2016-6828} - ALSA: pcm : Call kill_fasync() in stream lock (Takashi Iwai) [Orabug: 25231728] {CVE-2016-9794} - net: avoid signed overflows for SO_{SND|RCV}BUFFORCE (Eric Dumazet) [Orabug: 25231758] {CVE-2016-9793} - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306377] {CVE-2016-7042}
    last seen 2019-02-21
    modified 2017-10-05
    plugin id 96479
    published 2017-01-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96479
    title Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3510)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-0471-1.NASL
    description The SUSE Linux Enterprise 12 GA LTSS kernel was updated to 3.12.61 to receive various security and bugfixes. The following feature was implemented : - The ext2 filesystem got reenabled and supported to allow support for 'XIP' (Execute In Place) (FATE#320805). The following security bugs were fixed : - CVE-2017-5551: The tmpfs filesystem implementation in the Linux kernel preserved the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions (bsc#1021258). - CVE-2016-7097: The filesystem implementation in the Linux kernel preserved the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions (bnc#995968). - CVE-2017-2583: A Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support was vulnerable to an incorrect segment selector(SS) value error. A user/process inside guest could have used this flaw to crash the guest resulting in DoS or potentially escalate their privileges inside guest. (bsc#1020602). - CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt (bnc#1019851). - CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 (bnc#1017710). - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb truncation, which allowed local users to cause a denial of service (system crash) via a crafted application that made sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969). - CVE-2016-8399: An elevation of privilege vulnerability in the kernel networking subsystem could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Moderate because it first requires compromising a privileged process and current compiler optimizations restrict access to the vulnerable code. Product: Android. Versions: Kernel-3.10, Kernel-3.18. Android ID: A-31349935 (bnc#1014746). - CVE-2016-9806: Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel allowed local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that made sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated (bnc#1013540). - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038). - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531). - CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716). - CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501). - CVE-2016-7913: The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure (bnc#1010478). - CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711). - CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507). - CVE-2015-8963: Race condition in kernel/events/core.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect handling of an swevent data structure during a CPU unplug operation (bnc#1010502). - CVE-2016-7914: The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel did not check whether a slot is a leaf, which allowed local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite (bnc#1010475). - CVE-2016-8633: drivers/firewire/net.c in the Linux kernel allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833). - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux kernel allowed local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine confusion bug (bnc#1007197). - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the Linux kernel misused the kzalloc function, which allowed local users to cause a denial of service (integer overflow) or have unspecified other impact by leveraging access to a vfio PCI device file (bnc#1007197). - CVE-2016-7042: The proc_keys_show function in security/keys/proc.c in the Linux kernel uses an incorrect buffer size for certain timeout data, which allowed local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file (bnc#1004517). - CVE-2015-8956: The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel allowed local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket (bnc#1003925). - CVE-2016-8658: Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg8021 1.c in the Linux kernel allowed local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket (bnc#1004462). - CVE-2016-7425: The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932). - CVE-2016-6327: drivers/infiniband/ulp/srpt/ib_srpt.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) by using an ABORT_TASK command to abort a device write operation (bnc#994748). - CVE-2016-6828: The tcp_check_send_head function in include/net/tcp.h in the Linux kernel did not properly maintain certain SACK state after a failed data copy, which allowed local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option (bnc#994296). - CVE-2016-5696: net/ipv4/tcp_input.c in the Linux kernel did not properly determine the rate of challenge ACK segments, which made it easier for remote attackers to hijack TCP sessions via a blind in-window attack (bnc#989152). - CVE-2016-6130: Race condition in the sclp_ctl_ioctl_sccb function in drivers/s390/char/sclp_ctl.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by changing a certain length value, aka a 'double fetch' vulnerability (bnc#987542). - CVE-2016-6480: Race condition in the ioctl_send_fib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a 'double fetch' vulnerability (bnc#991608). - CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel allowed local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary (bnc#986362 bnc#986365). - CVE-2016-5828: The start_thread function in arch/powerpc/kernel/process.c in the Linux kernel on powerpc platforms mishandled transactional state, which allowed local users to cause a denial of service (invalid process state or TM Bad Thing exception, and system crash) or possibly have unspecified other impact by starting and suspending a transaction before an exec system call (bnc#986569). - CVE-2014-9904: The snd_compress_check_input function in sound/core/compress_offload.c in the ALSA subsystem in the Linux kernel did not properly check for an integer overflow, which allowed local users to cause a denial of service (insufficient memory allocation) or possibly have unspecified other impact via a crafted SNDRV_COMPRESS_SET_PARAMS ioctl call (bnc#986811). - CVE-2016-5829: Multiple heap-based buffer overflows in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux kernel allow local users to cause a denial of service or possibly have unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call (bnc#986572). - CVE-2016-4470: The key_reject_and_link function in security/keys/key.c in the Linux kernel did not ensure that a certain data structure is initialized, which allowed local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command (bnc#984755). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 97205
    published 2017-02-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97205
    title SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0471-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3534.NASL
    description Description of changes: [3.8.13-118.17.4.el7uek] - Revert 'fix minor infoleak in get_user_ex()' (Brian Maly) [Orabug: 25790392] {CVE-2016-9644} [3.8.13-118.17.3.el7uek] - net: ping: check minimum size on ICMP header length (Kees Cook) [Orabug: 25766911] {CVE-2016-8399} [3.8.13-118.17.2.el7uek] - ipv6: stop sending PTB packets for MTU < 1280 (Hagen Paul Pfeifer) [Orabug: 25765776] {CVE-2016-10142} - sg_write()/bsg_write() is not fit to be called under KERNEL_DS (Al Viro) [Orabug: 25765445] {CVE-2016-10088} - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter chang) [Orabug: 25751996] {CVE-2017-7187} [3.8.13-118.17.1.el7uek] - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander Popov) [Orabug: 25696686] {CVE-2017-2636} - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby) [Orabug: 25696686] {CVE-2017-2636} - drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc (Fabian Frederick) [Orabug: 25696686] {CVE-2017-2636} - x86: bpf_jit: fix compilation of large bpf programs (Alexei Starovoitov) [Orabug: 21305080] {CVE-2015-4700} - net: filter: return -EINVAL if BPF_S_ANC* operation is not supported (Daniel Borkmann) [Orabug: 22187148] - KEYS: request_key() should reget expired keys rather than give EKEYEXPIRED (David Howells) - KEYS: Increase root_maxkeys and root_maxbytes sizes (Steve Dickson) - firewire: net: guard against rx buffer overflows (Stefan Richter) [Orabug: 25451530] {CVE-2016-8633} - x86/mm/32: Enable full randomization on i386 and X86_32 (Hector Marco-Gisbert) [Orabug: 25463927] {CVE-2016-3672} - x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member (Radu Caragea) [Orabug: 25463927] {CVE-2016-3672} - pptp: verify sockaddr_len in pptp_bind() and pptp_connect() (WANG Cong) [Orabug: 25490335] {CVE-2015-8569} - sg_start_req(): make sure that there's not too many elements in iovec (Al Viro) [Orabug: 25490372] {CVE-2015-5707} - kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF) (Jim Mattson) [Orabug: 25507195] {CVE-2016-9588} - tcp: take care of truncations done by sk_filter() (Eric Dumazet) [Orabug: 25507230] {CVE-2016-8645} - rose: limit sk_filter trim to payload (Willem de Bruijn) [Orabug: 25507230] {CVE-2016-8645} - fix minor infoleak in get_user_ex() (Al Viro) [Orabug: 25507281] {CVE-2016-9178} - scsi: arcmsr: Simplify user_len checking (Borislav Petkov) [Orabug: 25507328] {CVE-2016-7425} - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() (Dan Carpenter) [Orabug: 25507328] {CVE-2016-7425} - net: fix a kernel infoleak in x25 module (Kangjie Lu) [Orabug: 25512413] {CVE-2016-4580} - USB: digi_acceleport: do sanity checking for the number of ports (Oliver Neukum) [Orabug: 25512471] {CVE-2016-3140} - ipv4: keep skb->dst around in presence of IP options (Eric Dumazet) [Orabug: 25543892] {CVE-2017-5970} - net/llc: avoid BUG_ON() in skb_orphan() (Eric Dumazet) [Orabug: 25682430] {CVE-2017-6345} - dccp: fix freeing skb too early for IPV6_RECVPKTINFO (Andrey Konovalov) {CVE-2017-6074} - crypto: algif_hash - Only export and import on sockets with data (Herbert Xu) [Orabug: 25417805] {CVE-2016-8646} - USB: usbfs: fix potential infoleak in devio (Kangjie Lu) [Orabug: 25462760] {CVE-2016-4482} - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462807] {CVE-2016-4485} - af_unix: Guard against other == sk in unix_dgram_sendmsg (Rainer Weikusat) [Orabug: 25463996] {CVE-2013-7446} - unix: avoid use-after-free in ep_remove_wait_queue (Rainer Weikusat) [Orabug: 25463996] {CVE-2013-7446} - net: avoid signed overflows for SO_{SND|RCV}BUFFORCE (Eric Dumazet) [Orabug: 25203623] {CVE-2016-9793}
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 99160
    published 2017-04-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99160
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3534)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-0931.NASL
    description An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. (CVE-2017-2636, Important) * A flaw was found in the Linux kernel key management subsystem in which a local attacker could crash the kernel or corrupt the stack and additional memory (denial of service) by supplying a specially crafted RSA key. This flaw panics the machine during the verification of the RSA key. (CVE-2016-8650, Moderate) * A flaw was found in the Linux kernel's implementation of setsockopt for the SO_{SND|RCV}BUFFORCE setsockopt() system call. Users with non-namespace CAP_NET_ADMIN are able to trigger this call and create a situation in which the sockets sendbuff data size could be negative. This could adversely affect memory allocations and create situations where the system could crash or cause memory corruption. (CVE-2016-9793, Moderate) * A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory. (CVE-2017-2618, Moderate) Red Hat would like to thank Alexander Popov for reporting CVE-2017-2636 and Ralf Spenneberg for reporting CVE-2016-8650. The CVE-2017-2618 issue was discovered by Paul Moore (Red Hat Engineering). Bug Fix(es) : * Previously, a cgroups data structure was sometimes corrupted due to a race condition in the kernel-rt cgroups code. Consequently, several system tasks were blocked, and the operating system became unresponsive. This update adds a lock that prevents the race condition. As a result, the cgroups data structure no longer gets corrupted and the operating system no longer hangs under the described circumstances. (BZ#1420784) * The kernel-rt packages have been upgraded to the 3.10.0-514.16.1 source tree, which provides a number of bug fixes over the previous version. (BZ# 1430749)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 99344
    published 2017-04-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99344
    title RHEL 7 : kernel-rt (RHSA-2017:0931)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3509.NASL
    description Description of changes: kernel-uek [3.8.13-118.16.2.el7uek] - net: avoid signed overflows for SO_{SND|RCV}BUFFORCE (Eric Dumazet) [Orabug: 25203623] {CVE-2016-9793} [3.8.13-118.16.1.el7uek] - nvme: Limit command retries (Ashok Vairavan) [Orabug: 25374794] - tcp: fix use after free in tcp_xmit_retransmit_queue() (Eric Dumazet) [Orabug: 25374371] {CVE-2016-6828} - logging errors that get masked to EIO inside drivers/block/loop.c (Manjunath Patil) [Orabug: 22505535] - ALSA: pcm : Call kill_fasync() in stream lock (Takashi Iwai) [Orabug: 25203963] {CVE-2016-9794} - packet: fix race condition in packet_set_ring (Philip Pettersson) [Orabug: 25217756] {CVE-2016-8655} - x86: kvmclock: zero initialize pvclock shared memory area (Igor Mammedov) [Orabug: 25218431] - KEYS: Fix short sprintf buffer in /proc/keys show function (David Howells) [Orabug: 25306373] {CVE-2016-7042}
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 96478
    published 2017-01-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96478
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3509)
packetstorm via4
data source https://packetstormsecurity.com/files/download/142487/lk311sndbufforce-escalate.txt
id PACKETSTORM:142487
last seen 2017-05-13
published 2017-05-12
reporter Andrey Konovalov
source https://packetstormsecurity.com/files/142487/Linux-Kernel-SO_SNDBUFFORCE-SO_RCVBUFFORCE-Local-Privilege-Escalation.html
title Linux Kernel SO_SNDBUFFORCE / SO_RCVBUFFORCE Local Privilege Escalation
redhat via4
advisories
  • rhsa
    id RHSA-2017:0931
  • rhsa
    id RHSA-2017:0932
  • rhsa
    id RHSA-2017:0933
rpms
  • kernel-rt-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-debug-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-debug-devel-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-debug-kvm-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-devel-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-doc-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-kvm-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-trace-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-trace-devel-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-rt-trace-kvm-0:3.10.0-514.16.1.rt56.437.el7
  • kernel-0:3.10.0-514.16.1.el7
  • kernel-abi-whitelists-0:3.10.0-514.16.1.el7
  • kernel-bootwrapper-0:3.10.0-514.16.1.el7
  • kernel-debug-0:3.10.0-514.16.1.el7
  • kernel-debug-devel-0:3.10.0-514.16.1.el7
  • kernel-devel-0:3.10.0-514.16.1.el7
  • kernel-doc-0:3.10.0-514.16.1.el7
  • kernel-headers-0:3.10.0-514.16.1.el7
  • kernel-kdump-0:3.10.0-514.16.1.el7
  • kernel-kdump-devel-0:3.10.0-514.16.1.el7
  • kernel-tools-0:3.10.0-514.16.1.el7
  • kernel-tools-libs-0:3.10.0-514.16.1.el7
  • kernel-tools-libs-devel-0:3.10.0-514.16.1.el7
  • perf-0:3.10.0-514.16.1.el7
  • python-perf-0:3.10.0-514.16.1.el7
refmap via4
bid 94655
confirm
misc https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793
mlist [oss-security] 20161202 Re: CVE Request: Linux: signed overflows for SO_{SND|RCV}BUFFORCE
sectrack 1037968
Last major update 07-03-2017 - 21:59
Published 28-12-2016 - 02:59
Last modified 04-01-2018 - 21:31
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