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AUSCERT External Security Bulletin Redistribution
ESB-2019.2499
Security update for the Linux Kernel
9 July 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11487
Reference: ESB-2019.2498
ESB-2019.2497
ESB-2019.2171
ESB-2019.2155
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-20191768-1.html
https://www.suse.com/support/update/announcement/2019/suse-su-20191769-1.html
Comment: This bulletin contains two (2) SUSE security advisories.
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SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for
SLE 12 SP3)
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1768-1
Rating: important
References: #1133191
Cross-References: CVE-2019-11487
Affected Products:
SUSE Linux Enterprise Live Patching 12-SP3
______________________________________________________________________________
An update that fixes one vulnerability is now available.
Description:
This update for the Linux Kernel 4.4.180-94_97 fixes one issue.
The following security issue was fixed:
o 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:
o SUSE Linux Enterprise Live Patching 12-SP3:
zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2019-1768=1
Package List:
o SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):
kgraft-patch-4_4_180-94_97-default-2-2.1
kgraft-patch-4_4_180-94_97-default-debuginfo-2-2.1
References:
o https://www.suse.com/security/cve/CVE-2019-11487.html
o https://bugzilla.suse.com/1133191
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SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1769-1
Rating: important
References: #1138264
Cross-References: CVE-2019-12817
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP1
______________________________________________________________________________
Patch 1 for
SLE 15 SP1)
An update that fixes one vulnerability is now available.
Description:
This update for the Linux Kernel 4.12.14-197_4 fixes one issue.
The following security issue was fixed:
o CVE-2019-12817: arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel
for powerpc had a bug where unrelated processes may be able to read/write
to one another's virtual memory under certain conditions via an mmap above
512 TB. Only a subset of powerpc systems are affected (bsc#1138264).
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:
o SUSE Linux Enterprise Module for Live Patching 15-SP1:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2019-1769=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):
kernel-livepatch-4_12_14-197_4-default-2-2.1
References:
o https://www.suse.com/security/cve/CVE-2019-12817.html
o https://bugzilla.suse.com/1138264
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