ID CVE-2016-8646
Summary The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows 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.
References
Vulnerable Configurations
  • Linux Kernel 4.3.5
    cpe:2.3:o:linux:linux_kernel:4.3.5
CVSS
Base: 4.9 (as of 28-11-2016 - 14:52)
Impact:
Exploitability:
CWE CWE-476
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
nessus via4
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1298.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) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Bug Fix(es) : * The kernel-rt packages have been upgraded to the 3.10.0-514.21.1 source tree, which provides a number of bug fixes over the previous version. (BZ# 1440803)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100456
    published 2017-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100456
    title RHEL 7 : kernel-rt (RHSA-2017:1298)
  • 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 Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1297.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) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Bug Fix(es) : * The kernel-rt packages have been upgraded to the 3.10.0-514 source tree, which provides a number of bug fixes over the previous version. (BZ# 1440807)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100455
    published 2017-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100455
    title RHEL 6 : MRG (RHSA-2017:1297)
  • 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 SuSE Local Security Checks
    NASL id OPENSUSE-2016-1431.NASL
    description The openSUSE 13.2 kernel was updated 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-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-2016-7910: 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-2016-7916: 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-2016-8633: 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-2016-8646: 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-2016-8655: A race condition in the af_packet packet_set_ring function could be used by local attackers to crash the kernel or gain privileges (bsc#1012754). - CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacks 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). The following non-security bugs were fixed : - bna: Add synchronization for tx ring (bsc#993739). - bonding: set carrier off for devices created through netlink (bsc#999577). - btrfs: fix extent tree corruption due to relocation (bsc#990384). - introduce NETIF_F_GSO_ENCAP_ALL helper mask (bsc#1001486). - ipv6: send NEWLINK on RA managed/otherconf changes (bsc#934067). - ipv6: send only one NEWLINK when RA causes changes (bsc#934067). - tunnels: Remove encapsulation offloads on decap (bsc#1001486). - usbhid: add ATEN CS962 to list of quirky devices (bsc#1007615). - vmxnet3: Wake queue from reset work (bsc#999907).
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 95705
    published 2016-12-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95705
    title openSUSE Security Update : the Linux Kernel (openSUSE-2016-1431)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3515.NASL
    description Description of changes: kernel-uek [3.8.13-118.16.3.el7uek] - 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}
    last seen 2019-02-21
    modified 2017-02-13
    plugin id 97117
    published 2017-02-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97117
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3515)
  • 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 Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZLSA-2017-1308.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. Security Fix(es) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) * It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Additional Changes : This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Technical Notes document linked to in the References section. 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 101474
    published 2017-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101474
    title Virtuozzo 7 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-1308)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-1308.NASL
    description From Red Hat Security Advisory 2017:1308 : 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. Security Fix(es) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) * It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Additional Changes : This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Technical Notes document linked to in the References section.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 100507
    published 2017-05-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100507
    title Oracle Linux 7 : kernel (ELSA-2017-1308)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170525_KERNEL_ON_SL7_X.NASL
    description Security Fix(es) : - It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) - Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) - A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) - A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) - It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate)
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 100458
    published 2017-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100458
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • 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 Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-3514.NASL
    description Description of changes: kernel-uek [4.1.12-61.1.27.el7uek] - vfio/pci: Fix integer overflows, bitmask check (Vlad Tsyrklevich) [Orabug: 25164094] {CVE-2016-9083} {CVE-2016-9084} - Don't feed anything but regular iovec's to blk_rq_map_user_iov (Linus Torvalds) [Orabug: 25231931] {CVE-2016-9576} - kvm: x86: Check memopp before dereference (CVE-2016-8630) (Owen Hofmann) [Orabug: 25417387] {CVE-2016-8630} - crypto: algif_hash - Only export and import on sockets with data (Herbert Xu) [Orabug: 25417799] {CVE-2016-8646} - USB: usbfs: fix potential infoleak in devio (Kangjie Lu) [Orabug: 25462755] {CVE-2016-4482} - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462799] {CVE-2016-4485} [4.1.12-61.1.26.el7uek] - xen-netback: fix extra_info handling in xenvif_tx_err() (Paul Durrant) [Orabug: 25445336] - net: Documentation: Fix default value tcp_limit_output_bytes (Niklas Cassel) [Orabug: 25458076] - tcp: double default TSQ output bytes limit (Wei Liu) [Orabug: 25458076] - xenbus: fix deadlock on writes to /proc/xen/xenbus (David Vrabel) [Orabug: 25430143]
    last seen 2019-02-21
    modified 2017-02-08
    plugin id 97057
    published 2017-02-08
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97057
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3514)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-1308-1.NASL
    description Description of changes: - [3.10.0-514.21.1.0.1.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] [3.10.0-514.21.1.el7] - [kernel] sched/core: Fix an SMP ordering race in try_to_wake_up() vs. schedule() (Gustavo Duarte) [1441547 1423400] - [drivers] Set dev->device_rh to NULL after free (Prarit Bhargava) [1441544 1414064] - [security] keys: request_key() should reget expired keys rather than give EKEYEXPIRED (David Howells) [1441287 1408330] - [security] keys: Simplify KEYRING_SEARCH_{NO, DO}_STATE_CHECK flags (David Howells) [1441287 1408330] - [net] packet: fix overflow in check for tp_reserve (Hangbin Liu) [1441171 1441172] {CVE-2017-7308} - [net] packet: fix overflow in check for tp_frame_nr (Hangbin Liu) [1441171 1441172] {CVE-2017-7308} - [net] packet: fix overflow in check for priv area size (Hangbin Liu) [1441171 1441172] {CVE-2017-7308} - [powerpc] pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec (Steve Best) [1439812 1423396] - [netdrv] fjes: Fix wrong netdevice feature flags (Yasuaki Ishimatsu) [1439802 1435603] - [kernel] mlx5e: Implement Fragmented Work Queue (WQ) (Don Dutile) [1439164 1368400] - [netdrv] mlx5e: Copy all L2 headers into inline segment (Don Dutile) [1439161 1383013] - [nvdimm] fix PHYS_PFN/PFN_PHYS mixup (Jeff Moyer) [1439160 1428115] - [s390] scsi: zfcp: fix rport unblock race with LUN recovery (Hendrik Brueckner) [1433413 1421750] - [fs] gfs2: Avoid alignment hole in struct lm_lockname (Robert S Peterson) [1432554 1425450] - [fs] gfs2: Add missing rcu locking for glock lookup (Robert S Peterson) [1432554 1425450] - [fs] ext4: fix fencepost in s_first_meta_bg validation (Lukas Czerner) [1430969 1332503] {CVE-2016-10208} - [fs] ext4: sanity check the block and cluster size at mount time (Lukas Czerner) [1430969 1332503] {CVE-2016-10208} - [fs] ext4: validate s_first_meta_bg at mount time (Lukas Czerner) [1430969 1332503] {CVE-2016-10208} - [net] sctp: deny peeloff operation on asocs with threads sleeping on it (Hangbin Liu) [1429496 1429497] {CVE-2017-5986 CVE-2017-6353} - [net] sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Hangbin Liu) [1429496 1429497] {CVE-2017-5986 CVE-2017-6353} - [x86] perf/x86/intel/rapl: Make package handling more robust (Jiri Olsa) [1443902 1418688] - [x86] perf/x86/intel/rapl: Convert to hotplug state machine (Jiri Olsa) [1443902 1418688] - [x86] perf/x86: Set pmu->module in Intel PMU modules (Jiri Olsa) [1443902 1418688] - [kernel] sched/core, x86/topology: Fix NUMA in package topology bug (Jiri Olsa) [1441645 1369832] - [kernel] sched: Allow hotplug notifiers to be setup early (Jiri Olsa) [1441645 1369832] - [x86] x86/smpboot: Make logical package management more robust (Prarit Bhargava) [1441643 1414054] - [x86] x86/cpu: Deal with broken firmware (VMWare/XEN) (Prarit Bhargava) [1441643 1414054] - [x86] perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code (Prarit Bhargava) [1426633 1373738] - [x86] revert 'perf/uncore: Disable uncore on kdump kernel' (Prarit Bhargava) [1426633 1373738] - [x86] smpboot: Init apic mapping before usage (Prarit Bhargava) [1426633 1373738] - [x86] smp: Don't try to poke disabled/non-existent APIC (Prarit Bhargava) [1426633 1373738] - [x86] Handle non enumerated CPU after physical hotplug (Prarit Bhargava) [1426633 1373738] - [block] fix use-after-free in seq file (Denys Vlasenko) [1418550 1418551] {CVE-2016-7910} - [crypto] algif_hash - Only export and import on sockets with data (Herbert Xu) [1394101 1387632] {CVE-2016-8646} - [char] hwrng: core - sleep interruptible in read (Amit Shah) [1443503 1376397] - [char] hwrng: core - correct error check of kthread_run call (Amit Shah) [1443503 1376397] - [char] hwrng: core - Move hwrng_init call into set_current_rng (Amit Shah) [1443503 1376397] - [char] hwrng: core - Drop current rng in set_current_rng (Amit Shah) [1443503 1376397] - [char] hwrng: core - Do not register device opportunistically (Amit Shah) [1443503 1376397] - [char] hwrng: core - Fix current_rng init/cleanup race yet again (Amit Shah) [1443503 1376397] - [char] hwrng: core - Use struct completion for cleanup_done (Amit Shah) [1443503 1376397] - [char] hwrng: don't init list element we're about to add to list (Amit Shah) [1443503 1376397] - [char] hwrng: don't double-check old_rng (Amit Shah) [1443503 1376397] - [char] hwrng: fix unregister race (Amit Shah) [1443503 1376397] - [char] hwrng: use reference counts on each struct hwrng (Amit Shah) [1443503 1376397] - [char] hwrng: move some code out mutex_lock for avoiding underlying deadlock (Amit Shah) [1443503 1376397] - [char] hwrng: place mutex around read functions and buffers (Amit Shah) [1443503 1376397] - [char] virtio-rng: skip reading when we start to remove the device (Amit Shah) [1443503 1376397] - [char] virtio-rng: fix stuck of hot-unplugging busy device (Amit Shah) [1443503 1376397] - [infiniband] ib/mlx5: Resolve soft lock on massive reg MRs (Don Dutile) [1444347 1417285] [3.10.0-514.20.1.el7] - [powerpc] fadump: Fix the race in crash_fadump() (Steve Best) [1439810 1420077] - [kernel] locking/mutex: Explicitly mark task as running after wakeup (Gustavo Duarte) [1439803 1423397] - [netdrv] ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths (Ken Cox) [1438421 1383524] - [fs] nfsv4.0: always send mode in SETATTR after EXCLUSIVE4 (Benjamin Coddington) [1437967 1415780] - [net] fix creation adjacent device symlinks (Adrian Reber) [1436646 1412898] - [net] prevent of emerging cross-namespace symlinks (Adrian Reber) [1436646 1412898] - [netdrv] macvlan: unregister net device when netdev_upper_dev_link() fails (Adrian Reber) [1436646 1412898] - [scsi] vmw_pvscsi: return SUCCESS for successful command aborts (Ewan Milne) [1435764 1394172] - [infiniband] ib/uverbs: Fix race between uverbs_close and remove_one (Don Dutile) [1435187 1417284] - [fs] gfs2: Prevent BUG from occurring when normal Withdraws occur (Robert S Peterson) [1433882 1404005] - [fs] jbd2: fix incorrect unlock on j_list_lock (Lukas Czerner) [1433881 1403346] - [fs] xfs: don't wrap ID in xfs_dq_get_next_id (Eric Sandeen) [1433415 1418182] - [net] tcp/dccp: avoid starving bh on connect (Paolo Abeni) [1433320 1401419] - [fs] xfs: fix up xfs_swap_extent_forks inline extent handling (Eric Sandeen) [1432154 1412945] - [x86] kvm: vmx: handle PML full VMEXIT that occurs during event delivery (Radim Krcmar) [1431666 1421296] - [virt] kvm: vmx: ensure VMCS is current while enabling PML (Radim Krcmar) [1431666 1421296] - [net] ip_tunnel: Create percpu gro_cell (Jiri Benc) [1431197 1424076] - [x86] kvm: x86: do not save guest-unsupported XSAVE state (Radim Krcmar) [1431150 1401767] - [scsi] mpt3sas: Force request partial completion alignment (Tomas Henzl) [1430809 1418286] [3.10.0-514.19.1.el7] - [fs] gfs2: Wake up io waiters whenever a flush is done (Robert S Peterson) [1437126 1404301] - [fs] gfs2: Made logd daemon take into account log demand (Robert S Peterson) [1437126 1404301] - [fs] gfs2: Limit number of transaction blocks requested for truncates (Robert S Peterson) [1437126 1404301] - [net] ipv6: addrconf: fix dev refcont leak when DAD failed (Hangbin Liu) [1436588 1416105] [3.10.0-514.18.1.el7] - [net] ipv6: don't increase size when refragmenting forwarded ipv6 skbs (Florian Westphal) [1434589 1430571] - [net] bridge: drop netfilter fake rtable unconditionally (Florian Westphal) [1434589 1430571] - [net] ipv6: avoid write to a possibly cloned skb (Florian Westphal) [1434589 1430571] - [net] netfilter: bridge: honor frag_max_size when refragmenting (Florian Westphal) [1434589 1430571] - [net] bridge: Add br_netif_receive_skb remove netif_receive_skb_sk (Ivan Vecera) [1434589 1352289] [3.10.0-514.17.1.el7] - [netdrv] i40e: Be much more verbose about what we can and cannot offload (Stefan Assmann) [1433273 1383521] - [kernel] watchdog: prevent false hardlockup on overloaded system (Don Zickus) [1433267 1399881] - [net] dccp/tcp: fix routing redirect race (Eric Garver) [1433265 1387485]
    last seen 2019-02-21
    modified 2018-09-17
    plugin id 100506
    published 2017-05-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100506
    title Oracle Linux 7 : kernel (ELSA-2017-1308-1)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZA-2017-042.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 : - The NFS2/3 RPC client could send long arguments to nfsd server. These encoded arguments are stored in an array of memory pages, and accessed via various pointer variables. Arbitrarily long arguments could make these pointers point outside the array, thus causing out-of-bounds memory access. A remote user/program could use this flaw to crash the kernel resulting in DoS. - The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly have unspecified other impact via crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c. - The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The IPv6 DCCP implementation in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The IPv6 fragmentation implementation in the Linux kernel through 4.11.1 does not consider that the nexthdr field may be associated with an invalid option, which allows local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls. - The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. - If the sctp module was loaded on the host, a privileged user inside a container could cause a kernel crash by triggering a NULL pointer dererefence in the sctp_endpoint_destroy() function with a specially crafted sequence of system calls. - A privileged user inside a container could cause a kernel crash by triggering a BUG_ON in the unregister_netdevice_many() function with a specially crafted sequence of system calls. 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 100598
    published 2017-06-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100598
    title Virtuozzo 7 : readykernel-patch (VZA-2017-042)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZA-2017-043.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 : - The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The IPv6 DCCP implementation in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - The IPv6 fragmentation implementation in the Linux kernel through 4.11.1 does not consider that the nexthdr field may be associated with an invalid option, which allows local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls. - The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. - A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. 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 100599
    published 2017-06-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100599
    title Virtuozzo 7 : readykernel-patch (VZA-2017-043)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0039.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - vfio/pci: Fix integer overflows, bitmask check (Vlad Tsyrklevich) [Orabug: 25164094] (CVE-2016-9083) (CVE-2016-9084) - Don't feed anything but regular iovec's to blk_rq_map_user_iov (Linus Torvalds) [Orabug: 25231931] (CVE-2016-9576) - kvm: x86: Check memopp before dereference (CVE-2016-8630) (Owen Hofmann) [Orabug: 25417387] (CVE-2016-8630) - crypto: algif_hash - Only export and import on sockets with data (Herbert Xu) [Orabug: 25417799] (CVE-2016-8646) - USB: usbfs: fix potential infoleak in devio (Kangjie Lu) [Orabug: 25462755] (CVE-2016-4482) - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462799] (CVE-2016-4485) - xen-netback: fix extra_info handling in xenvif_tx_err (Paul Durrant) [Orabug: 25445336] - net: Documentation: Fix default value tcp_limit_output_bytes (Niklas Cassel) [Orabug: 25458076] - tcp: double default TSQ output bytes limit (Wei Liu) [Orabug: 25458076] - xenbus: fix deadlock on writes to /proc/xen/xenbus (David Vrabel)
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 97079
    published 2017-02-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97079
    title OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0039)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0040.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - 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)
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 97119
    published 2017-02-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97119
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0040)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-1428.NASL
    description The openSUSE Leap 42.1 kernel was updated to 4.1.36 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2016-8655: A race condition in the af_packet packet_set_ring function could be used by local attackers to crash the kernel or gain privileges (bsc#1012754). - CVE-2016-9794: A use-after-free in ALSA pcm could lead to crashes or allowed local users to potentially gain privileges (bsc#1013533). - 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-2016-9178: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel did not initialize a certain integer variable, which allowed local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call (bnc#1008650). - 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-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacks 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-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-2016-8646: 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-2016-8630: The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel, when KVM is enabled, allowed local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction (bnc#1009222). - 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-2016-7042: 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-2016-7097: 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-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). The following non-security bugs were fixed : - ata: ahci_xgene: dereferencing uninitialized pointer in probe (bsc#1006580). - blacklist.conf: add some commits (bsc#1006580) - bna: Add synchronization for tx ring (bsc#993739). - bonding: set carrier off for devices created through netlink (bsc#999577). - btrfs: deal with duplicates during extent_map insertion in btrfs_get_extent (bsc#1001171). - btrfs: deal with existing encompassing extent map in btrfs_get_extent() (bsc#1001171). - btrfs: fix extent tree corruption due to relocation (bsc#990384). - btrfs: fix races on root_log_ctx lists (bsc#1007653). - ext4: fix data exposure after a crash (bsc#1012876). - ext4: fix reference counting bug on block allocation error (bsc#1012876). - gre: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU (bsc#1001486). - gro: Allow tunnel stacking in the case of FOU/GUE (bsc#1001486). - ipv6: send NEWLINK on RA managed/otherconf changes (bsc#934067). - ipv6: send only one NEWLINK when RA causes changes (bsc#934067). - isofs: Do not return EACCES for unknown filesystems (bsc#1012876). - jbd2: fix checkpoint list cleanup (bsc#1012876). - jbd2: Fix unreclaimed pages after truncate in data=journal mode (bsc#1010909). - locking/static_key: Fix concurrent static_key_slow_inc() (bsc#1006580). - mmc: Fix kabi breakage of mmc-block in 4.1.36 (stable-4.1.36). - posix_acl: Added fix for f2fs. - Revert 'kbuild: add -fno-PIE' (stable-4.1.36). - Revert 'x86/mm: Expand the exception table logic to allow new handling options' (stable-4.1.36). - tunnels: Remove encapsulation offloads on decap (bsc#1001486). - usbhid: add ATEN CS962 to list of quirky devices (bsc#1007615). - vmxnet3: Wake queue from reset work (bsc#999907).
    last seen 2019-02-21
    modified 2018-05-23
    plugin id 95702
    published 2016-12-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95702
    title openSUSE Security Update : the Linux Kernel (openSUSE-2016-1428)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1308.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. Security Fix(es) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) * It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Additional Changes : This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Technical Notes document linked to in the References section.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100457
    published 2017-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100457
    title RHEL 7 : kernel (RHSA-2017:1308)
  • 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 CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-1308.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. Security Fix(es) : * It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important) * Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate) * A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate) * A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate) * It was reported that with Linux kernel, earlier than version v4.10-rc8, an application may trigger a BUG_ON in sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is waiting on it to queue more data, and meanwhile another thread peels off the association being used by the first thread. (CVE-2017-5986, Moderate) Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646. Additional Changes : This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Technical Notes document linked to in the References section.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100430
    published 2017-05-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100430
    title CentOS 7 : kernel (CESA-2017:1308)
  • 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)
redhat via4
advisories
  • rhsa
    id RHSA-2017:1297
  • rhsa
    id RHSA-2017:1298
  • rhsa
    id RHSA-2017:1308
rpms
  • kernel-rt-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-debug-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-debug-devel-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-debug-kvm-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-devel-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-doc-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-kvm-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-trace-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-trace-devel-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-rt-trace-kvm-0:3.10.0-514.21.1.rt56.438.el7
  • kernel-0:3.10.0-514.21.1.el7
  • kernel-abi-whitelists-0:3.10.0-514.21.1.el7
  • kernel-bootwrapper-0:3.10.0-514.21.1.el7
  • kernel-debug-0:3.10.0-514.21.1.el7
  • kernel-debug-devel-0:3.10.0-514.21.1.el7
  • kernel-devel-0:3.10.0-514.21.1.el7
  • kernel-doc-0:3.10.0-514.21.1.el7
  • kernel-headers-0:3.10.0-514.21.1.el7
  • kernel-kdump-0:3.10.0-514.21.1.el7
  • kernel-kdump-devel-0:3.10.0-514.21.1.el7
  • kernel-tools-0:3.10.0-514.21.1.el7
  • kernel-tools-libs-0:3.10.0-514.21.1.el7
  • kernel-tools-libs-devel-0:3.10.0-514.21.1.el7
  • perf-0:3.10.0-514.21.1.el7
  • python-perf-0:3.10.0-514.21.1.el7
refmap via4
bid 94309
confirm
mlist [oss-security] 20161115 CVE-2016-8646: linux kernel - oops in shash_async_export()
Last major update 28-11-2016 - 18:36
Published 27-11-2016 - 22:59
Last modified 04-01-2018 - 21:31
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