Security update for Linux Kernel Live Patch 16 for SLE 12

SUSE Security Update: Security update for Linux Kernel Live Patch 16 for SLE 12
Announcement ID: SUSE-SU-2017:0245-1
Rating: important
References: #1012852 #1013543 #1013604 #1014271 #1017589
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12
  • SUSE Linux Enterprise Server 12-LTSS

  • An update that solves four vulnerabilities and has one errata is now available.

    Description:

    This update for the Linux Kernel 3.12.60-52_57 fixes several issues.

    The following security bugs were fixed:
    - CVE-2016-9806: Race condition in the netlink_dump function in
    net/netlink/af_netlink.c in the Linux kernel allowed local users to
    cause a denial of service (double free) or possibly have unspecified
    other impact via a crafted application that made sendmsg system calls,
    leading to a free operation associated with a new dump that started
    earlier than anticipated (bsc#1017589).
    - CVE-2016-9794: Race condition in the snd_pcm_period_elapsed function in
    sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel allowed
    local users to cause a denial of service (use-after-free) or possibly
    have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START
    command (bsc#1013543).
    - 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 (bsc#1012852).
    - CVE-2016-9576: The blk_rq_map_user_iov function in block/blk-map.c in
    the Linux kernel did not properly restrict the type of iterator, 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 (bsc#1014271).

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Server for SAP 12:
      zypper in -t patch SUSE-SLE-SAP-12-2017-126=1
    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2017-126=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Server for SAP 12 (x86_64):
      • kgraft-patch-3_12_60-52_57-default-3-2.1
      • kgraft-patch-3_12_60-52_57-xen-3-2.1
    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • kgraft-patch-3_12_60-52_57-default-3-2.1
      • kgraft-patch-3_12_60-52_57-xen-3-2.1

    References: