SUSE Security Update: Security update for the Linux Kernel (Live Patch 6 for SLE 12 SP2) ______________________________________________________________________________

Announcement ID: SUSE-SU-2018:0296-1 Rating: important References: #1069708 #1073230 Cross-References: CVE-2017-16939 CVE-2017-17712 Affected Products: SUSE Linux Enterprise Live Patching 12 ______________________________________________________________________________

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.49-92_14 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:

zypper in -t patch SUSE-SLE-Live-Patching-12-2018-218=1

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

Package List:

- SUSE Linux Enterprise Live Patching 12 (x86_64):

kgraft-patch-4_4_49-92_14-default-9-2.1

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