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Ubuntu 14.04 LTS : Linux kernel (Wily HWE) vulnerability (USN-2872-2)

high Nessus Plugin ID 88015

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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-2872-2 advisory.

 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.

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-2872-2

Plugin Details

Severity: High

ID: 88015

File Name: ubuntu_USN-2872-2.nasl

Version: 2.19

Type: local

Agent: unix

Published: 1/20/2016

Updated: 8/27/2024

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 Score Source: CVE-2016-0728

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:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.2.0-25-powerpc64-smp

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: 2872-2