Ubuntu 16.04 LTS : linux vulnerability (USN-3106-1) (Dirty COW)

High Nessus Plugin ID 94155


The remote Ubuntu host is missing one or more security-related patches.


It was discovered that a race condition existed in the memory manager of the Linux kernel when handling copy-on-write breakage of private read-only memory mappings. A local attacker could use this to gain administrative privileges.

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


Update the affected linux-image-4.4-generic, linux-image-4.4-generic-lpae and / or linux-image-4.4-lowlatency packages.

Plugin Details

Severity: High

ID: 94155

File Name: ubuntu_USN-3106-1.nasl

Version: $Revision: 2.13 $

Type: local

Agent: unix

Published: 2016/10/20

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:canonical:ubuntu_linux:linux-image-4.4-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-lowlatency, cpe:/o:canonical:ubuntu_linux:16.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/10/19

Exploitable With


Core Impact

Reference Information

CVE: CVE-2016-5195

OSVDB: 146061

USN: 3106-1

IAVA: 2016-A-0306