Security update for the Linux Kernel (Live Patch 16 for SLE 12 SP3)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 16 for SLE 12 SP3)
Announcement ID: SUSE-SU-2019:0754-1
Rating: important
References: #1124729 #1124734 #1128378
Cross-References: CVE-2019-6974 CVE-2019-7221 CVE-2019-9213
Affected Products:
  • SUSE Linux Enterprise Live Patching 12-SP3

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.143-94_47 fixes several issues.
The following security issues were fixed:

  • CVE-2019-9213: Expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bsc#1128378).
  • CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124734).
  • CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free (bsc#1124729).

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 Live Patching 12-SP3:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2019-751=1 SUSE-SLE-Live-Patching-12-SP3-2019-752=1 SUSE-SLE-Live-Patching-12-SP3-2019-753=1 SUSE-SLE-Live-Patching-12-SP3-2019-754=1 SUSE-SLE-Live-Patching-12-SP3-2019-755=1 SUSE-SLE-Live-Patching-12-SP3-2019-756=1 SUSE-SLE-Live-Patching-12-SP3-2019-757=1 SUSE-SLE-Live-Patching-12-SP3-2019-758=1 SUSE-SLE-Live-Patching-12-SP3-2019-759=1 SUSE-SLE-Live-Patching-12-SP3-2019-760=1 SUSE-SLE-Live-Patching-12-SP3-2019-762=1 SUSE-SLE-Live-Patching-12-SP3-2019-763=1 SUSE-SLE-Live-Patching-12-SP3-2019-764=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):
    • kgraft-patch-4_4_120-94_17-default-11-2.1
    • kgraft-patch-4_4_120-94_17-default-debuginfo-11-2.1
    • kgraft-patch-4_4_126-94_22-default-11-2.1
    • kgraft-patch-4_4_126-94_22-default-debuginfo-11-2.1
    • kgraft-patch-4_4_131-94_29-default-9-2.1
    • kgraft-patch-4_4_131-94_29-default-debuginfo-9-2.1
    • kgraft-patch-4_4_132-94_33-default-9-2.1
    • kgraft-patch-4_4_132-94_33-default-debuginfo-9-2.1
    • kgraft-patch-4_4_138-94_39-default-7-2.1
    • kgraft-patch-4_4_138-94_39-default-debuginfo-7-2.1
    • kgraft-patch-4_4_140-94_42-default-7-2.1
    • kgraft-patch-4_4_140-94_42-default-debuginfo-7-2.1
    • kgraft-patch-4_4_143-94_47-default-5-2.1
    • kgraft-patch-4_4_143-94_47-default-debuginfo-5-2.1
    • kgraft-patch-4_4_155-94_50-default-5-2.1
    • kgraft-patch-4_4_155-94_50-default-debuginfo-5-2.1
    • kgraft-patch-4_4_156-94_57-default-5-2.1
    • kgraft-patch-4_4_156-94_57-default-debuginfo-5-2.1
    • kgraft-patch-4_4_156-94_61-default-5-2.1
    • kgraft-patch-4_4_156-94_61-default-debuginfo-5-2.1
    • kgraft-patch-4_4_156-94_64-default-4-2.1
    • kgraft-patch-4_4_156-94_64-default-debuginfo-4-2.1
    • kgraft-patch-4_4_162-94_69-default-3-2.1
    • kgraft-patch-4_4_162-94_69-default-debuginfo-3-2.1
    • kgraft-patch-4_4_162-94_72-default-3-2.1
    • kgraft-patch-4_4_162-94_72-default-debuginfo-3-2.1

References: