SUSE Security Update: Security update for the Linux Kernel (Live Patch 9 for
 SLE 15)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:1882-1
Rating:             important
References:         #1136446 #1137597 #1140747 
Cross-References:   CVE-2019-11477 CVE-2019-11478 CVE-2019-3846
                   
Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-150_14 fixes several issues.

   The following security issues were fixed:

   - CVE-2019-11477: Jonathan Looney discovered that the
     TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow
     when handling TCP Selective Acknowledgments (SACKs). A remote attacker
     could use this to cause a denial of service. (bsc#1137586)
   - CVE-2019-11478: Jonathan Looney discovered that the TCP retransmission
     queue implementation in tcp_fragment could be fragmented when handling
     certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker
     could use this to cause a denial of service. (bsc#1137586)
   - 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#1136424).

   This update contains a regression fix for CVE-2019-11477 and
   CVE-2019-11478 (bsc#1140747).


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-15-2019-1878=1
 SUSE-SLE-Module-Live-Patching-15-2019-1879=1 SUSE-SLE-Module-Live-Patching-15-2019-1880=1 SUSE-SLE-Module-Live-Patching-15-2019-1881=1 SUSE-SLE-Module-Live-Patching-15-2019-1882=1 SUSE-SLE-Module-Live-Patching-15-2019-1883=1 SUSE-SLE-Module-Live-Patching-15-2019-1884=1 SUSE-SLE-Module-Live-Patching-15-2019-1885=1 SUSE-SLE-Module-Live-Patching-15-2019-1886=1 SUSE-SLE-Module-Live-Patching-15-2019-1887=1



Package List:

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

      kernel-livepatch-4_12_14-150_14-default-3-2.1
      kernel-livepatch-4_12_14-150_14-default-debuginfo-3-2.1
      kernel-livepatch-4_12_14-150_17-default-3-2.1
      kernel-livepatch-4_12_14-150_17-default-debuginfo-3-2.1
      kernel-livepatch-4_12_14-25_13-default-8-2.1
      kernel-livepatch-4_12_14-25_13-default-debuginfo-8-2.1
      kernel-livepatch-4_12_14-25_16-default-7-2.1
      kernel-livepatch-4_12_14-25_16-default-debuginfo-7-2.1
      kernel-livepatch-4_12_14-25_19-default-7-2.1
      kernel-livepatch-4_12_14-25_19-default-debuginfo-7-2.1
      kernel-livepatch-4_12_14-25_22-default-6-2.1
      kernel-livepatch-4_12_14-25_22-default-debuginfo-6-2.1
      kernel-livepatch-4_12_14-25_25-default-5-2.1
      kernel-livepatch-4_12_14-25_25-default-debuginfo-5-2.1
      kernel-livepatch-4_12_14-25_28-default-4-2.1
      kernel-livepatch-4_12_14-25_28-default-debuginfo-4-2.1
      kernel-livepatch-4_12_14-25_3-default-11-2.1
      kernel-livepatch-4_12_14-25_3-default-debuginfo-11-2.1
      kernel-livepatch-4_12_14-25_6-default-10-2.1
      kernel-livepatch-4_12_14-25_6-default-debuginfo-10-2.1


References:

   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-2019-3846.html
   https://bugzilla.suse.com/1136446
   https://bugzilla.suse.com/1137597
   https://bugzilla.suse.com/1140747

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