SUSE-SU-2018:0347-1: important: Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)

\n\n SUSE Security Update: Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)
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Announcement ID: SUSE-SU-2018:0347-1
Rating: important
References: #1069708 #1073230
Cross-References: CVE-2017-16939 CVE-2017-17712
Affected Products:
SUSE Linux Enterprise Live Patching 12-SP3
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An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.82-6_9 fixes several issues.

The following security issues were fixed:

– CVE-2017-17712: The raw_sendmsg() function had a race condition that
lead to uninitialized stack pointer usage. This allowed a local user to
execute code and gain privileges (bsc#1073230).
– CVE-2017-16939: The XFRM dump policy implementation allowed local users
to gain privileges or cause a denial of service (use-after-free) via a
crafted SO_RCVBUF setsockopt system call in conjunction with
XFRM_MSG_GETPOLICY Netlink messages (bsc#1069708).

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
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-SP3-2018-240=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– SUSE Linux Enterprise Live Patching 12-SP3 (x86_64):

kgraft-patch-4_4_82-6_9-default-4-2.1
kgraft-patch-4_4_82-6_9-default-debuginfo-4-2.1

References:

https://www.suse.com/security/cve/CVE-2017-16939.html
https://www.suse.com/security/cve/CVE-2017-17712.html
https://bugzilla.suse.com/1069708
https://bugzilla.suse.com/1073230


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