SUSE-SU-2017:1284-1: important: Security update for Linux Kernel Live Patch 7 for SLE 12 SP1

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for Linux Kernel Live Patch 7 for SLE 12 SP1
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Announcement ID:    SUSE-SU-2017:1284-1
Rating:             important
References:         #1030467 #1030575 #1031440 #1031481 #1031660 
                    
Cross-References:   CVE-2017-7294 CVE-2017-7308
Affected Products:
                    SUSE Linux Enterprise Live Patching 12
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   An update that solves two vulnerabilities and has three
   fixes is now available.

Description:

   This update for the Linux Kernel 3.12.62-60_62 fixes several issues.

   The following security bugs were fixed:

   - CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in
     the Linux kernel did not properly validate certain block-size data,
     which allowed local users to cause a denial of service (overflow) or
     possibly have unspecified other impact via crafted system calls
     (bsc#1030575, bsc#1031660).
   - CVE-2017-7294: The vmw_surface_define_ioctl function in
     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not
     validate addition of certain levels data, which allowed local users to
     trigger an integer overflow and out-of-bounds write, and cause a denial
     of service (system hang or crash) or possibly gain privileges, via a
     crafted ioctl call for a /dev/dri/renderD* device (bsc#1031440,
     bsc#1031481).
   - bsc#1030467: Updated Dirty COW fix. The former patch caused some apps to
     freeze in rare circumstances


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 Live Patching 12:

      zypper in -t patch SUSE-SLE-Live-Patching-12-2017-779=1

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


Package List:

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-3_12_62-60_62-default-9-2.1
      kgraft-patch-3_12_62-60_62-xen-9-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-7294.html
   https://www.suse.com/security/cve/CVE-2017-7308.html
   https://bugzilla.suse.com/1030467
   https://bugzilla.suse.com/1030575
   https://bugzilla.suse.com/1031440
   https://bugzilla.suse.com/1031481
   https://bugzilla.suse.com/1031660