SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:3225-1) (Dirty COW)

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


Synopsis :

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

Description :

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various
security and bugfixes. The following security bugs were fixed :

- CVE-2017-1000405: A bug in the THP CoW support could be
used by local attackers to corrupt memory of other
processes and cause them to crash (bnc#1069496).

- CVE-2017-16939: The XFRM dump policy implementation in
net/xfrm/xfrm_user.c in the Linux kernel 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 (bnc#1069702).

The update package also includes non-security fixes. See advisory for
details.

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/1069496
https://bugzilla.suse.com/1069702
https://bugzilla.suse.com/1070805
https://www.suse.com/security/cve/CVE-2017-1000405.html
https://www.suse.com/security/cve/CVE-2017-16939.html
http://www.nessus.org/u?a67ec772

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP3:zypper in -t patch
SUSE-SLE-WE-12-SP3-2017-2006=1

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2017-2006=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2017-2006=1

SUSE Linux Enterprise Live Patching 12-SP3:zypper in -t patch
SUSE-SLE-Live-Patching-12-SP3-2017-2006=1

SUSE Linux Enterprise High Availability 12-SP3:zypper in -t patch
SUSE-SLE-HA-12-SP3-2017-2006=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2017-2006=1

SUSE Container as a Service Platform ALL:zypper in -t patch
SUSE-CAASP-ALL-2017-2006=1

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

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 105072 ()

Bugtraq ID:

CVE ID: CVE-2017-1000405
CVE-2017-16939

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