SUSE Security Update: Security update for Linux Kernel Live Patch 26 for SLE 12 ______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2476-1 Rating: important References: #1042892 #1046191 #1052311 #1052368 Cross-References: CVE-2017-1000112 CVE-2017-7645 CVE-2017-9242

Affected Products: SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________

An update that solves three vulnerabilities and has one errata is now available.

Description:

This update for the Linux Kernel 3.12.61-52_89 fixes several issues.

The following security bugs were fixed:

- CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c in the Linux kernel was too late in checking whether an overwrite of an skb data structure may occur, which allowed local users to cause a denial of service (system crash) via crafted system calls (bsc#1042892). - CVE-2017-7645: The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel allowed remote attackers to cause a denial of service (system crash) via a long RPC reply (bsc#1046191).

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 Server 12-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-2017-1543=1

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

Package List:

- SUSE Linux Enterprise Server 12-LTSS (x86_64):

kgraft-patch-3_12_61-52_89-default-2-2.2 kgraft-patch-3_12_61-52_89-xen-2-2.2

References:

https://www.suse.com/security/cve/CVE-2017-1000112.html https://www.suse.com/security/cve/CVE-2017-7645.html https://www.suse.com/security/cve/CVE-2017-9242.html https://bugzilla.suse.com/1042892 https://bugzilla.suse.com/1046191 https://bugzilla.suse.com/1052311 https://bugzilla.suse.com/1052368