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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerability (USN-3128-2)

medium Nessus Plugin ID 94734

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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-3128-2 advisory.

 USN-3128-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

 Ondrej Kozina discovered that the keyring interface in the Linux kernel contained a buffer overflow when displaying timeout events via the /proc/keys interface. A local attacker could use this to cause a denial of service (system crash).

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-3128-2

Plugin Details

Severity: Medium

ID: 94734

File Name: ubuntu_USN-3128-2.nasl

Version: 2.12

Type: local

Agent: unix

Published: 11/11/2016

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: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2016-7042

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.4

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-47-powerpc64-emb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2016

Vulnerability Publication Date: 10/16/2016

Reference Information

CVE: CVE-2016-7042

USN: 3128-2