Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP1)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP1)
Announcement ID: SUSE-SU-2019:1668-1
Rating: important
References: #1133191 #1136446 #1137597
Cross-References: CVE-2019-11477 CVE-2019-11478 CVE-2019-11487 CVE-2019-3846
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12-SP1
  • SUSE Linux Enterprise Server 12-SP1-LTSS
  • SUSE Linux Enterprise Server 12-LTSS

An update that fixes four vulnerabilities is now available.

Description:

This update for the Linux Kernel 3.12.74-60_64_107 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).

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 Server for SAP 12-SP1:
    zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1650=1 SUSE-SLE-SAP-12-SP1-2019-1651=1 SUSE-SLE-SAP-12-SP1-2019-1652=1 SUSE-SLE-SAP-12-SP1-2019-1664=1 SUSE-SLE-SAP-12-SP1-2019-1668=1
  • SUSE Linux Enterprise Server 12-SP1-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1650=1 SUSE-SLE-SERVER-12-SP1-2019-1651=1 SUSE-SLE-SERVER-12-SP1-2019-1652=1 SUSE-SLE-SERVER-12-SP1-2019-1664=1 SUSE-SLE-SERVER-12-SP1-2019-1668=1
  • SUSE Linux Enterprise Server 12-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-2019-1665=1 SUSE-SLE-SERVER-12-2019-1667=1 SUSE-SLE-SERVER-12-2019-1680=1 SUSE-SLE-SERVER-12-2019-1681=1

Package List:

  • SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):
    • kgraft-patch-3_12_74-60_64_104-default-7-2.1
    • kgraft-patch-3_12_74-60_64_104-xen-7-2.1
    • kgraft-patch-3_12_74-60_64_107-default-7-2.1
    • kgraft-patch-3_12_74-60_64_107-xen-7-2.1
    • kgraft-patch-3_12_74-60_64_110-default-3-2.1
    • kgraft-patch-3_12_74-60_64_110-xen-3-2.1
    • kgraft-patch-3_12_74-60_64_96-default-11-2.1
    • kgraft-patch-3_12_74-60_64_96-xen-11-2.1
    • kgraft-patch-3_12_74-60_64_99-default-9-2.1
    • kgraft-patch-3_12_74-60_64_99-xen-9-2.1
  • SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):
    • kgraft-patch-3_12_74-60_64_104-default-7-2.1
    • kgraft-patch-3_12_74-60_64_104-xen-7-2.1
    • kgraft-patch-3_12_74-60_64_107-default-7-2.1
    • kgraft-patch-3_12_74-60_64_107-xen-7-2.1
    • kgraft-patch-3_12_74-60_64_110-default-3-2.1
    • kgraft-patch-3_12_74-60_64_110-xen-3-2.1
    • kgraft-patch-3_12_74-60_64_96-default-11-2.1
    • kgraft-patch-3_12_74-60_64_96-xen-11-2.1
    • kgraft-patch-3_12_74-60_64_99-default-9-2.1
    • kgraft-patch-3_12_74-60_64_99-xen-9-2.1
  • SUSE Linux Enterprise Server 12-LTSS (x86_64):
    • kgraft-patch-3_12_61-52_136-default-11-2.1
    • kgraft-patch-3_12_61-52_136-xen-11-2.1
    • kgraft-patch-3_12_61-52_141-default-9-2.1
    • kgraft-patch-3_12_61-52_141-xen-9-2.1
    • kgraft-patch-3_12_61-52_146-default-7-2.1
    • kgraft-patch-3_12_61-52_146-xen-7-2.1
    • kgraft-patch-3_12_61-52_149-default-3-2.1
    • kgraft-patch-3_12_61-52_149-xen-3-2.1

References: