Security update for Linux Kernel Live Patch 27 for SLE 12

SUSE Security Update: Security update for Linux Kernel Live Patch 27 for SLE 12
Announcement ID: SUSE-SU-2017:2775-1
Rating: important
References: #1042892 #1045327 #1046191 #1052311 #1052368
Affected Products:
  • 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 3.12.61-52_92 fixes several issues.

    The following security bugs were fixed:

    - CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not
    consider the case of a NULL payload in conjunction with a nonzero length
    value, which allowed local users to cause a denial of service (NULL
    pointer dereference and OOPS) via a crafted add_key or keyctl system
    call (bsc#1045327).
    - CVE-2017-1000112: Updated patch for this issue to be in sync with the
    other livepatches. Description of the issue: Prevent race condition in
    net-packet code that could have been exploited by unprivileged users to
    gain root access (bsc#1052368, bsc#1052311).
    - CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
    was too late in checking whether an overwrite of an skb data structure
    may occur, which allowed local users to cause a denial of service
    (system crash) via crafted system calls (bsc#1042892).
    - CVE-2017-7645: The NFSv2/NFSv3 server in the nfsd subsystem allowed
    remote attackers to cause a denial of service (system crash) via a long
    RPC reply (bsc#1046191).

    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 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2017-1716=1

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

    Package List:

    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • kgraft-patch-3_12_61-52_92-default-2-4.1
      • kgraft-patch-3_12_61-52_92-xen-2-4.1

    References: