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

high Nessus Plugin ID 94153

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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.

 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.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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: 2.23

Type: local

Agent: unix

Published: 10/20/2016

Updated: 8/27/2024

Supported Sensors: Agentless 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

Temporal Score: 6.7

Vector: CVSS:3.0/AV:L/AC:H/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:14.04:-:lts, 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-lowlatency, 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-powerpc64-smp, 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-powerpc64-emb, 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-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: 3105-1