Detections
Analytics

Ubuntu 15.10 : linux vulnerability (USN-2872-1)

high Nessus Plugin ID 88014

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Synopsis

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

Description

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with 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-4.2-generic, linux-image-4.2-generic-lpae and / or linux-image-4.2-lowlatency packages.

See Also

https://usn.ubuntu.com/2872-1/

Plugin Details

Severity: High

ID: 88014

File Name: ubuntu_USN-2872-1.nasl

Version: 2.16

Type: local

Agent: unix

Published: 1/20/2016

Updated: 1/17/2023

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: 9.7

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 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-4.2-generic-lpae, cpe:/o:canonical:ubuntu_linux:15.10, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2-lowlatency

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: 1/19/2016

Vulnerability Publication Date: 2/8/2016

Exploitable With

Core Impact

Reference Information

CVE: CVE-2016-0728

USN: 2872-1