Ubuntu 14.04 LTS : Linux kernel vulnerability (USN-3105-1)

high Nessus Plugin ID 94153

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3105-1 advisory.

- Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka Dirty COW. (CVE-2016-5195)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-3105-1

Plugin Details

Severity: High

ID: 94153

File Name: ubuntu_USN-3105-1.nasl

Version: 2.22

Type: local

Agent: unix

Published: 10/20/2016

Updated: 1/9/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-100-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-:lts

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

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: 3105-1