Security update for Linux Kernel Live Patch 7 for SLE 12

SUSE Security Update: Security update for Linux Kernel Live Patch 7 for SLE 12
Announcement ID: SUSE-SU-2016:2014-1
Rating: important
References: #955837 #971793 #973570 #979064 #979074 #980856 #980883 #983144 #984764
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12
  • SUSE Linux Enterprise Server 12-LTSS

  • An update that solves 8 vulnerabilities and has one errata is now available.

    Description:

    This update for the Linux Kernel 3.12.44-52_18 fixes several issues.

    The following security bugs were fixed:
    - 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
    (bsc#984764).
    - 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 (bsc#983144).
    - CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel
    incorrectly relied 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 (bsc#980883).
    - CVE-2016-0758: Integer overflow in lib/asn1_decoder.c in the Linux
    kernel allowed local users to gain privileges via crafted ASN.1 data
    (bsc#980856).
    - CVE-2016-2053: The asn1_ber_decoder function in lib/asn1_decoder.c in
    the Linux kernel allowed attackers to cause a denial of service (panic)
    via an ASN.1 BER file that lacks a public key, leading to mishandling by
    the public_key_verify_signature function in
    crypto/asymmetric_keys/public_key.c (bsc#979074).
    - CVE-2015-8816: The hub_activate function in drivers/usb/core/hub.c in
    the Linux kernel did not properly maintain a hub-interface data
    structure, which allowed physically proximate attackers to cause a
    denial of service (invalid memory access and system crash) or possibly
    have unspecified other impact by unplugging a USB hub device
    (bsc#979064).
    - CVE-2016-3134: The netfilter subsystem in the Linux kernel did not
    validate certain offset fields, which allowed local users to gain
    privileges or cause a denial of service (heap memory corruption) via an
    IPT_SO_SET_REPLACE setsockopt call (bsc#971793).
    - CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the
    Linux kernel allowed local users to bypass intended AF_UNIX socket
    permissions or cause a denial of service (panic) via crafted epoll_ctl
    calls (bsc#973570, bsc#955837).

    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-12-2016-1177=1
    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2016-1177=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_44-52_18-default-6-2.2
      • kgraft-patch-3_12_44-52_18-xen-6-2.2
    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • kgraft-patch-3_12_44-52_18-default-6-2.2
      • kgraft-patch-3_12_44-52_18-xen-6-2.2

    References: