SUSE-SU-2018:0592-1: important: Security update for the Linux Kernel (Live Patch 4 for SLE 12 SP3)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 4 for SLE 12 SP3)
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Announcement ID:    SUSE-SU-2018:0592-1
Rating:             important
References:         #1077268 #1077404 
Cross-References:   CVE-2017-18075
Affected Products:
                    SUSE Linux Enterprise Live Patching 12-SP3
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   An update that solves one vulnerability and has one errata
   is now available.

Description:

   This update for the Linux Kernel 4.4.90-6_12 fixes several issues.

   The following security issue was fixed:

   - CVE-2017-18075: crypto/pcrypt.c in the Linux kernel mishandled freeing
     instances, allowing a local user able to access the AF_ALG-based AEAD
     interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt
     (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an
     incorrect pointer) or possibly have unspecified other impact by
     executing a crafted sequence of system calls (bsc#1077404).

   Non security issue fixed:

   - btrfs: account for pinned bytes in should_alloc_chunk (bsc#1077268)


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-SP3:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-403=1

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


Package List:

   - SUSE Linux Enterprise Live Patching 12-SP3 (x86_64):

      kgraft-patch-4_4_92-6_18-default-4-2.1
      kgraft-patch-4_4_92-6_18-default-debuginfo-4-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-18075.html
   https://bugzilla.suse.com/1077268
   https://bugzilla.suse.com/1077404