SUSE Security Update: Security update for the Linux Kernel (Live Patch 3 for SLE 15)
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Announcement ID:    SUSE-SU-2019:1581-1
Rating:             important
References:         #1133191 #1135280 #1136446 #1136935 #1137597 
                    
Cross-References:   CVE-2019-11085 CVE-2019-11477 CVE-2019-11478
                    CVE-2019-11487 CVE-2019-3846
Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
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   An update that fixes 5 vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-25_13 fixes several issues.

   The following security issues were fixed:

   - CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and
     possibly escalate privileges was found in the mwifiex kernel module
     while connecting to a malicious wireless network (bsc#1136446).
   - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote
     attacker such that one can trigger an integer overflow, leading to a
     kernel panic. (bsc#1137586).
   - CVE-2019-11478: It was possible to send a crafted sequence of SACKs
     which would fragment the TCP retransmission queue. A remote attacker may
     have been able to further exploit the fragmented queue to cause an
     expensive linked-list walk for subsequent SACKs received for that same
     TCP connection. (bsc#1137586)
   - CVE-2019-11487: The Linux kernel allowed page->_refcount reference count
     overflow, with resultant use-after-free issues, if about 140 GiB of RAM
     exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,
     include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c,
     mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests
     (bsc#1133191).
   - CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in
     Intel(R) i915 Graphics may allowed an authenticated user to potentially
     enable escalation of privilege via local access (bsc#1135280).


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-1579=1 SUSE-SLE-Module-Live-Patching-15-2019-1581=1 SUSE-SLE-Module-Live-Patching-15-2019-1582=1 SUSE-SLE-Module-Live-Patching-15-2019-1583=1 SUSE-SLE-Module-Live-Patching-15-2019-1584=1 SUSE-SLE-Module-Live-Patching-15-2019-1585=1 SUSE-SLE-Module-Live-Patching-15-2019-1586=1 SUSE-SLE-Module-Live-Patching-15-2019-1587=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):

      kernel-livepatch-4_12_14-25_13-default-7-2.1
      kernel-livepatch-4_12_14-25_13-default-debuginfo-7-2.1
      kernel-livepatch-4_12_14-25_16-default-6-2.1
      kernel-livepatch-4_12_14-25_16-default-debuginfo-6-2.1
      kernel-livepatch-4_12_14-25_19-default-6-2.1
      kernel-livepatch-4_12_14-25_19-default-debuginfo-6-2.1
      kernel-livepatch-4_12_14-25_22-default-5-2.1
      kernel-livepatch-4_12_14-25_22-default-debuginfo-5-2.1
      kernel-livepatch-4_12_14-25_25-default-4-2.1
      kernel-livepatch-4_12_14-25_25-default-debuginfo-4-2.1
      kernel-livepatch-4_12_14-25_28-default-3-2.1
      kernel-livepatch-4_12_14-25_28-default-debuginfo-3-2.1
      kernel-livepatch-4_12_14-25_3-default-10-2.1
      kernel-livepatch-4_12_14-25_3-default-debuginfo-10-2.1
      kernel-livepatch-4_12_14-25_6-default-9-2.1
      kernel-livepatch-4_12_14-25_6-default-debuginfo-9-2.1


References:

   https://www.suse.com/security/cve/CVE-2019-11085.html
   https://www.suse.com/security/cve/CVE-2019-11477.html
   https://www.suse.com/security/cve/CVE-2019-11478.html
   https://www.suse.com/security/cve/CVE-2019-11487.html
   https://www.suse.com/security/cve/CVE-2019-3846.html
   https://bugzilla.suse.com/1133191
   https://bugzilla.suse.com/1135280
   https://bugzilla.suse.com/1136446
   https://bugzilla.suse.com/1136935
   https://bugzilla.suse.com/1137597

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