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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerability (USN-3249-2)

high Nessus Plugin ID 99097

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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-3249-2 advisory.

 USN-3249-1 fixed a vulnerability 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.

 It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or 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-3249-2

Plugin Details

Severity: High

ID: 99097

File Name: ubuntu_USN-3249-2.nasl

Version: 3.12

Type: local

Agent: unix

Published: 3/30/2017

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: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2017-7184

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-generic, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-71-generic-lpae

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/29/2017

Vulnerability Publication Date: 3/19/2017

Reference Information

CVE: CVE-2017-7184

USN: 3249-2