ID CVE-2014-9715
Summary include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.
References
Vulnerable Configurations
  • Linux Kernel 3.14.4
    cpe:2.3:o:linux:linux_kernel:3.14.4
CVSS
Base: 4.9 (as of 27-05-2015 - 11:31)
Impact:
Exploitability:
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-124.NASL
    description The openSUSE 13.1 kernel was updated to receive various security and bugfixes. Following security bugs were fixed : - CVE-2016-0728: A reference leak in keyring handling with join_session_keyring() could lead to local attackers gain root privileges. (bsc#962075). - CVE-2015-7550: A local user could have triggered a race between read and revoke in keyctl (bnc#958951). - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel did not verify an address length, which allowed local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application (bnc#959190). - CVE-2015-8543: The networking implementation in the Linux kernel did not validate protocol identifiers for certain protocol families, which allowed local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (bnc#958886). - CVE-2014-8989: The Linux kernel did not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allowed local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a 'negative groups' issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c (bnc#906545). - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI (bnc#937969). - CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936). - CVE-2015-8104: The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (bnc#954404). - CVE-2015-5307: The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (bnc#953527). - CVE-2014-9529: Race condition in the key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (memory corruption or panic) or possibly have unspecified other impact via keyctl commands that trigger access to a key structure member during garbage collection of a key (bnc#912202). - CVE-2015-7990: Race condition in the rds_sendmsg function in net/rds/sendmsg.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6937 (bnc#952384 953052). - CVE-2015-6937: The __rds_conn_create function in net/rds/connection.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (bnc#945825). - CVE-2015-7885: The dgnc_mgmt_ioctl function in drivers/staging/dgnc/dgnc_mgmt.c in the Linux kernel through 4.3.3 did not initialize a certain structure member, which allowed local users to obtain sensitive information from kernel memory via a crafted application (bnc#951627). - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel did not validate attempted changes to the MTU value, which allowed context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product (bnc#955354). - CVE-2015-8767: A case can occur when sctp_accept() is called by the user during a heartbeat timeout event after the 4-way handshake. Since sctp_assoc_migrate() changes both assoc->base.sk and assoc->ep, the bh_sock_lock in sctp_generate_heartbeat_event() will be taken with the listening socket but released with the new association socket. The result is a deadlock on any future attempts to take the listening socket lock. (bsc#961509) - CVE-2015-8575: Validate socket address length in sco_sock_bind() to prevent information leak (bsc#959399). - CVE-2015-8551, CVE-2015-8552: xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has MSI(X) enabled (bsc#957990). - CVE-2015-8550: Compiler optimizations in the XEN PV backend drivers could have lead to double fetch vulnerabilities, causing denial of service or arbitrary code execution (depending on the configuration) (bsc#957988). The following non-security bugs were fixed : - ALSA: hda - Disable 64bit address for Creative HDA controllers (bnc#814440). - ALSA: hda - Fix noise problems on Thinkpad T440s (boo#958504). - Input: aiptek - fix crash on detecting device without endpoints (bnc#956708). - KEYS: Make /proc/keys unconditional if CONFIG_KEYS=y (boo#956934). - KVM: x86: update masterclock values on TSC writes (bsc#961739). - NFS: Fix a NULL pointer dereference of migration recovery ops for v4.2 client (bsc#960839). - apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task (bsc#921949). - blktap: also call blkif_disconnect() when frontend switched to closed (bsc#952976). - blktap: refine mm tracking (bsc#952976). - cdrom: Random writing support for BD-RE media (bnc#959568). - genksyms: Handle string literals with spaces in reference files (bsc#958510). - ipv4: Do not increase PMTU with Datagram Too Big message (bsc#955224). - ipv6: distinguish frag queues by device for multicast and link-local packets (bsc#955422). - ipv6: fix tunnel error handling (bsc#952579). - route: Use ipv4_mtu instead of raw rt_pmtu (bsc#955224). - uas: Add response iu handling (bnc#954138). - usbvision fix overflow of interfaces array (bnc#950998). - x86/evtchn: make use of PHYSDEVOP_map_pirq. - xen/pciback: Do not allow MSI-X ops if PCI_COMMAND_MEMORY is not set (bsc#957990 XSA-157).
    last seen 2019-02-21
    modified 2016-12-07
    plugin id 88545
    published 2016-02-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=88545
    title openSUSE Security Update : the Linux Kernel (openSUSE-2016-124)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1564.NASL
    description Updated kernel-rt packages that fix three security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise MRG 2.5. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715 issue. This update provides a build of the kernel-rt package for Red Hat Enterprise MRG 2.5 that is layered on Red Hat Enterprise Linux 6, and fixes the following issues : * drbg: Add stdrng alias and increase priority * seqiv / eseqiv / chainiv: Move IV seeding into init function * ipv4: kABI fix for 0bbf87d backport * ipv4: Convert ipv4.ip_local_port_range to be per netns * libceph: tcp_nodelay support * ipr: Increase default adapter init stage change timeout * fix use-after-free bug in usb_hcd_unlink_urb() * libceph: fix double __remove_osd() problem * ext4: fix data corruption caused by unwritten and delayed extents * sunrpc: Add missing support for RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT * nfs: Fixing lease renewal (Benjamin Coddington) * control hard lockup detection default * Fix print-once on enable * watchdog: update watchdog_thresh properly and watchdog attributes atomically * module: Call module notifier on failure after complete_formation() (BZ#1230403) This update also fixes the following bugs : * Non-standard usage of the functions write_seqcount_{begin,end}() were used in NFSv4, which caused the realtime code to try to sleep while locks were held and produced the 'scheduling while atomic' messages. The code was modified to use the functions __write_seqcount_{begin,end}() that do not hold any locks removing the message and allowing correct execution. (BZ#1225642) * Dracut in Red Hat Enterprise Linux 6 has a dependency on a module called scsi_wait_scan that no longer exists on 3.x kernels. This caused the system to display misleading messages at start-up when the obsoleted scsi_wait_scan module was not found. To address this issue, MRG Realtime provides a dummy scsi_wait_scan module so that the requirements for the initramfs created by dracut are met and the boot messages are no longer displayed. (BZ#1230403) All kernel-rt users are advised to upgrade to these updated packages, which correct these issues and add these enhancements. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85249
    published 2015-08-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85249
    title RHEL 6 : MRG (RHSA-2015:1564)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3067.NASL
    description Description of changes: [2.6.39-400.250.10.el5uek] - md: use kzalloc() when bitmap is disabled (Benjamin Randazzo) [Orabug: 21563042] {CVE-2015-5697} - netfilter: nf_conntrack: reserve two bytes for nf_ct_ext->len (Andrey Vagin) [Orabug: 21562780] {CVE-2014-9715}
    last seen 2019-02-21
    modified 2015-12-01
    plugin id 85262
    published 2015-08-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85262
    title Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3067)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2611-1.NASL
    description Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). 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 83758
    published 2015-05-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=83758
    title Ubuntu 12.04 LTS : linux vulnerability (USN-2611-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-3068.NASL
    description Description of changes: kernel-uek [2.6.32-400.37.10.el5uek] - md: use kzalloc() when bitmap is disabled (Benjamin Randazzo) [Orabug: 21563043] {CVE-2015-5697} - netfilter: nf_conntrack: reserve two bytes for nf_ct_ext->len (Andrey Vagin) [Orabug: 21562781] {CVE-2014-9715}
    last seen 2019-02-21
    modified 2015-12-01
    plugin id 85263
    published 2015-08-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85263
    title Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3068)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0037.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2016-0037 for details.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 90019
    published 2016-03-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90019
    title OracleVM 3.2 : kernel-uek (OVMSA-2016-0037)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2614-1.NASL
    description Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). (CVE-2014-9715) Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). (CVE-2015-2150) A privilege escalation was discovered in the fork syscal vi the int80 entry on 64 bit kernels with 32 bit emulation support. An unprivileged local attacker could exploit this flaw to increase their privileges on the system. (CVE-2015-2830) A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331). 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 83760
    published 2015-05-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=83760
    title Ubuntu 14.04 LTS : linux vulnerabilities (USN-2614-1)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20150805_KERNEL_ON_SL7_X.NASL
    description * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place. (CVE-2015-2666, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) This update also fixes several bugs. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 85264
    published 2015-08-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85264
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1565.NASL
    description Updated kernel-rt packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place. (CVE-2015-2666, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715 issue. The kernel-rt packages have been upgraded to version 3.10.0-229.11.1, which provides a number of bug fixes and enhancements over the previous version, including : * drbg: Add stdrng alias and increase priority * seqiv / eseqiv / chainiv: Move IV seeding into init function * ipv4: kABI fix for 0bbf87d backport * ipv4: Convert ipv4.ip_local_port_range to be per netns * libceph: tcp_nodelay support * ipr: Increase default adapter init stage change timeout * fix use-after-free bug in usb_hcd_unlink_urb() * libceph: fix double __remove_osd() problem * ext4: fix data corruption caused by unwritten and delayed extents * sunrpc: Add missing support for RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT * nfs: Fixing lease renewal (Benjamin Coddington) * control hard lockup detection default * Fix print-once on enable * watchdog: update watchdog_thresh properly and watchdog attributes atomically * module: Call module notifier on failure after complete_formation() (BZ#1234470) This update also fixes the following bugs : * The megasas driver used the smp_processor_id() function within a preemptible context, which caused warning messages to be returned to the console. The function has been changed to raw_smp_processor_id() so that a lock is held while getting the processor ID. As a result, correct operations are now allowed without any console warnings being produced. (BZ#1235304) * In the NFSv4 file system, non-standard usage of the write_seqcount_{begin,end}() functions were used, which caused the realtime code to try to sleep while locks were held. As a consequence, the 'scheduling while atomic' error messages were returned. The underlying source code has been modified to use the __write_seqcount_{begin,end}() functions that do not hold any locks, allowing correct execution of realtime. (BZ#1235301) All kernel-rt users are advised to upgrade to these updated packages, which correct these issues and add these enhancements. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85705
    published 2015-08-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85705
    title RHEL 7 : kernel-rt (RHSA-2015:1565)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2015-1534.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place. (CVE-2015-2666, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715 issue. This update also fixes several bugs. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/1474193 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85305
    published 2015-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85305
    title CentOS 7 : kernel (CESA-2015:1534)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-1534.NASL
    description From Red Hat Security Advisory 2015:1534 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place. (CVE-2015-2666, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715 issue. This update also fixes several bugs. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/1474193 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 85247
    published 2015-08-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85247
    title Oracle Linux 7 : kernel (ELSA-2015-1534)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1534.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. * An integer overflow flaw was found in the way the Linux kernel's netfilter connection tracking implementation loaded extensions. An attacker on a local network could potentially send a sequence of specially crafted packets that would initiate the loading of a large number of extensions, causing the targeted system in that network to crash. (CVE-2014-9715, Moderate) * A stack-based buffer overflow flaw was found in the Linux kernel's early load microcode functionality. On a system with UEFI Secure Boot enabled, a local, privileged user could use this flaw to increase their privileges to the kernel (ring0) level, bypassing intended restrictions in place. (CVE-2015-2666, Moderate) * It was found that the Linux kernel's ping socket implementation did not properly handle socket unhashing during spurious disconnects, which could lead to a use-after-free flaw. On x86-64 architecture systems, a local user able to create ping sockets could use this flaw to crash the system. On non-x86-64 architecture systems, a local user able to create ping sockets could use this flaw to escalate their privileges on the system. (CVE-2015-3636, Moderate) * It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets. (CVE-2015-2922, Low) Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715 issue. This update also fixes several bugs. Refer to the following Knowledgebase article for further information : https://access.redhat.com/articles/1474193 All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85248
    published 2015-08-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85248
    title RHEL 7 : kernel (RHSA-2015:1534)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3237.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-2014-8159 It was found that the Linux kernel's InfiniBand/RDMA subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. - CVE-2014-9715 It was found that the netfilter connection tracking subsystem used too small a type as an offset within each connection's data structure, following a bug fix in Linux 3.2.33 and 3.6. In some configurations, this would lead to memory corruption and crashes (even without malicious traffic). This could potentially also result in violation of the netfilter policy or remote code execution. This can be mitigated by disabling connection tracking accounting:sysctl net.netfilter.nf_conntrack_acct=0 - CVE-2015-2041 Sasha Levin discovered that the LLC subsystem exposed some variables as sysctls with the wrong type. On a 64-bit kernel, this possibly allows privilege escalation from a process with CAP_NET_ADMIN capability; it also results in a trivial information leak. - CVE-2015-2042 Sasha Levin discovered that the RDS subsystem exposed some variables as sysctls with the wrong type. On a 64-bit kernel, this results in a trivial information leak. - CVE-2015-2150 Jan Beulich discovered that Xen guests are currently permitted to modify all of the (writable) bits in the PCI command register of devices passed through to them. This in particular allows them to disable memory and I/O decoding on the device unless the device is an SR-IOV virtual function, which can result in denial of service to the host. - CVE-2015-2830 Andrew Lutomirski discovered that when a 64-bit task on an amd64 kernel makes a fork(2) or clone(2) system call using int $0x80, the 32-bit compatibility flag is set (correctly) but is not cleared on return. As a result, both seccomp and audit will misinterpret the following system call by the task(s), possibly leading to a violation of security policy. - CVE-2015-2922 Modio AB discovered that the IPv6 subsystem would process a router advertisement that specifies no route but only a hop limit, which would then be applied to the interface that received it. This can result in loss of IPv6 connectivity beyond the local network. This may be mitigated by disabling processing of IPv6 router advertisements if they are not needed:sysctl net.ipv6.conf.default.accept_ra=0sysctl net.ipv6.conf..accept_ra=0 - CVE-2015-3331 Stephan Mueller discovered that the optimised implementation of RFC4106 GCM for x86 processors that support AESNI miscalculated buffer addresses in some cases. If an IPsec tunnel is configured to use this mode (also known as AES-GCM-ESP) this can lead to memory corruption and crashes (even without malicious traffic). This could potentially also result in remote code execution. - CVE-2015-3332 Ben Hutchings discovered that the TCP Fast Open feature regressed in Linux 3.16.7-ckt9, resulting in a kernel BUG when it is used. This can be used as a local denial of service. - CVE-2015-3339 It was found that the execve(2) system call can race with inode attribute changes made by chown(2). Although chown(2) clears the setuid/setgid bits of a file if it changes the respective owner ID, this race condition could result in execve(2) setting effective uid/gid to the new owner ID, a privilege escalation.
    last seen 2019-02-21
    modified 2018-12-18
    plugin id 83065
    published 2015-04-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=83065
    title Debian DSA-3237-1 : linux - security update
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2613-1.NASL
    description Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). (CVE-2014-9715) Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). (CVE-2015-2150) A privilege escalation was discovered in the fork syscal vi the int80 entry on 64 bit kernels with 32 bit emulation support. An unprivileged local attacker could exploit this flaw to increase their privileges on the system. (CVE-2015-2830) A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331). 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 83759
    published 2015-05-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=83759
    title Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2613-1)
redhat via4
advisories
  • rhsa
    id RHSA-2015:1534
  • rhsa
    id RHSA-2015:1564
rpms
  • kernel-0:3.10.0-229.11.1.el7
  • kernel-abi-whitelists-0:3.10.0-229.11.1.el7
  • kernel-bootwrapper-0:3.10.0-229.11.1.el7
  • kernel-debug-0:3.10.0-229.11.1.el7
  • kernel-debug-devel-0:3.10.0-229.11.1.el7
  • kernel-devel-0:3.10.0-229.11.1.el7
  • kernel-doc-0:3.10.0-229.11.1.el7
  • kernel-headers-0:3.10.0-229.11.1.el7
  • kernel-kdump-0:3.10.0-229.11.1.el7
  • kernel-kdump-devel-0:3.10.0-229.11.1.el7
  • kernel-tools-0:3.10.0-229.11.1.el7
  • kernel-tools-libs-0:3.10.0-229.11.1.el7
  • kernel-tools-libs-devel-0:3.10.0-229.11.1.el7
  • perf-0:3.10.0-229.11.1.el7
  • python-perf-0:3.10.0-229.11.1.el7
  • kernel-rt-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-debug-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-debug-devel-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-devel-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-doc-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-trace-0:3.10.0-229.11.1.rt56.141.11.el7_1
  • kernel-rt-trace-devel-0:3.10.0-229.11.1.rt56.141.11.el7_1
refmap via4
bid 73953
confirm
debian DSA-3237
mlist
  • [netfilter-devel] 20140526 OOPS NULL pointer dereference in nf_nat_setup_info+0x471 (reproductible, 3.14.4)
  • [oss-security] 20150407 CVE request netfilter connection tracking accounting.
sectrack 1032415
Last major update 30-12-2016 - 21:59
Published 27-05-2015 - 06:59
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