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Ubuntu 16.10 : linux vulnerability (USN-3107-1) (Dirty COW)

high Nessus Plugin ID 94159

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Synopsis

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

Description

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.

Solution

Update the affected linux-image-4.8-generic, linux-image-4.8-generic-lpae and / or linux-image-4.8-lowlatency packages.

See Also

https://usn.ubuntu.com/3107-1/

Plugin Details

Severity: High

ID: 94159

File Name: ubuntu_USN-3107-1.nasl

Version: 2.20

Type: local

Agent: unix

Published: 10/20/2016

Updated: 1/12/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2016-5195

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.10, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.8-generic-lpae

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: 10/19/2016

Vulnerability Publication Date: 11/10/2016

CISA Known Exploited Vulnerability Due Dates: 3/24/2022

Exploitable With

CANVAS (CANVAS)

Core Impact

Reference Information

CVE: CVE-2016-5195

IAVA: 2016-A-0306-S

USN: 3107-1