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AUSCERT External Security Bulletin Redistribution
ESB-2019.2497
SUSE-SU-2019:1767-1 Security update for the Linux Kernel
(Live Patch 34 for SLE 12 SP1)
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 -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11487 CVE-2018-5390
Reference: ASB-2019.0012
ASB-2018.0222.3
ESB-2018.2278
ESB-2018.2275
ESB-2018.2271
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-20191767-1.html
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SUSE Security Update: Security update for the Linux Kernel (Live Patch 34 for
SLE 12 SP1)
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1767-1
Rating: important
References: #1102682 #1133191
Cross-References: CVE-2018-5390 CVE-2019-11487
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP2
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP2-LTSS
SUSE Linux Enterprise Server 12-SP1-LTSS
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for the Linux Kernel 3.12.74-60_64_115 fixes several issues.
The following security issues were 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).
o CVE-2018-5390: Linux kernel could be forced to make very expensive calls to
tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming
packet which can lead to a denial of service (bsc#1102682).
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 Server for SAP 12-SP2:
zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-1766=1
o SUSE Linux Enterprise Server for SAP 12-SP1:
zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1767=1
o SUSE Linux Enterprise Server 12-SP2-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-1766=1
o SUSE Linux Enterprise Server 12-SP1-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1767=1
Package List:
o SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
kgraft-patch-4_4_121-92_114-default-2-2.1
o SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):
kgraft-patch-3_12_74-60_64_115-default-2-2.1
kgraft-patch-3_12_74-60_64_115-xen-2-2.1
o SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):
kgraft-patch-4_4_121-92_114-default-2-2.1
o SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):
kgraft-patch-3_12_74-60_64_115-default-2-2.1
kgraft-patch-3_12_74-60_64_115-xen-2-2.1
References:
o https://www.suse.com/security/cve/CVE-2018-5390.html
o https://www.suse.com/security/cve/CVE-2019-11487.html
o https://bugzilla.suse.com/1102682
o https://bugzilla.suse.com/1133191
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===========================================================================
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