SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2655-1) (Dirty COW)

High Nessus Plugin ID 94323


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


This update for the Linux Kernel 3.12.55-52_42 fixes several issues.
The following security bugs were fixed :

- CVE-2016-5195: A local privilege escalation using MAP_PRIVATE was fixed, which is reportedly exploited in the wild (bsc#1004419).

- CVE-2016-4997: The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement (bsc#986377).

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.


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-12-2016-1559=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2016-1559=1

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

See Also

Plugin Details

Severity: High

ID: 94323

File Name: suse_SU-2016-2655-1.nasl

Version: $Revision: 2.8 $

Type: local

Agent: unix

Published: 2016/10/27

Modified: 2017/01/16

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Temporal Score: 6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 7.8

Temporal Score: 7.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_55-52_42-default, p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_55-52_42-xen, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/10/26

Exploitable With


Core Impact

Metasploit (Linux Kernel 4.6.3 Netfilter Privilege Escalation)

Reference Information

CVE: CVE-2016-4997, CVE-2016-5195

OSVDB: 140493, 146061

IAVA: 2016-A-0306