SUSE SLES12 Security Update : kernel (SUSE-SU-2016:3109-1)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

This update for the Linux Kernel 3.12.55-52_45 fixes several issues.
The following security bugs were fixed :

- CVE-2016-8655: A race condition in the af_packet
packet_set_ring function could be used by local
attackers to crash the kernel or gain privileges
(bsc#1012759).

- CVE-2016-9555: The sctp_sf_ootb function in
net/sctp/sm_statefuns.c in the Linux kernel lacks
chunk-length checking for the first chunk, which allowed
remote attackers to cause a denial of service
(out-of-bounds slab access) or possibly have unspecified
other impact via crafted SCTP data (bsc#1012183).

- CVE-2016-7117: Use-after-free vulnerability in the
__sys_recvmmsg function in net/socket.c in the Linux
kernel allowed remote attackers to execute arbitrary
code via vectors involving a recvmmsg system call that
is mishandled during error processing (bsc#1003253).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/1003253
https://bugzilla.suse.com/1012183
https://bugzilla.suse.com/1012759
https://www.suse.com/security/cve/CVE-2016-7117.html
https://www.suse.com/security/cve/CVE-2016-8655.html
https://www.suse.com/security/cve/CVE-2016-9555.html
http://www.nessus.org/u?8ed111ba

Solution :

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:zypper in -t patch
SUSE-SLE-SAP-12-2016-1809=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2016-1809=1

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

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.8
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 95799 ()

Bugtraq ID:

CVE ID: CVE-2016-7117
CVE-2016-8655
CVE-2016-9555

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