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[security-announce] SUSE-SU-2017:2791-1: important: Security update for Linux Kernel Live Patch 21 for SLE 12 SP1
SUSE Security Update: Security update for Linux Kernel Live Patch 21 for SLE
12 SP1
______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2791-1
Rating: important
References: #1038564 #1042892 #1045327 #1052311 #1052368

Cross-References: CVE-2017-1000112 CVE-2017-15274 CVE-2017-8890
CVE-2017-9242
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
______________________________________________________________________________

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

Description:

This update for the Linux Kernel 3.12.74-60_64_60 fixes several issues.

The following security bugs were fixed:

- CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not
consider the case of a NULL payload in conjunction with a nonzero length
value, which allowed local users to cause a denial of service (NULL
pointer dereference and OOPS) via a crafted add_key or keyctl system
call (bsc#1045327).
- CVE-2017-1000112: Updated patch for this issue to be in sync with the
other livepatches. Description of the issue: Prevent race condition in
net-packet code that could have been exploited by unprivileged users to
gain root access (bsc#1052368, bsc#1052311).
- CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
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-2017-8890: The inet_csk_clone_lock function in
net/ipv4/inet_connection_sock.c allowed attackers to cause a denial of
service (double free) or possibly have unspecified other impact by
leveraging use of the accept system call (bsc#1038564).


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 for SAP 12-SP1:

zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1732=1

- SUSE Linux Enterprise Server 12-SP1-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1732=1

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


Package List:

- SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

kgraft-patch-3_12_74-60_64_60-default-2-4.1
kgraft-patch-3_12_74-60_64_60-xen-2-4.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

kgraft-patch-3_12_74-60_64_60-default-2-4.1
kgraft-patch-3_12_74-60_64_60-xen-2-4.1


References:

https://www.suse.com/security/cve/CVE-2017-1000112.html
https://www.suse.com/security/cve/CVE-2017-15274.html
https://www.suse.com/security/cve/CVE-2017-8890.html
https://www.suse.com/security/cve/CVE-2017-9242.html
https://bugzilla.suse.com/1038564
https://bugzilla.suse.com/1042892
https://bugzilla.suse.com/1045327
https://bugzilla.suse.com/1052311
https://bugzilla.suse.com/1052368

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