Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 : libvirt vulnerabilities (USN-1954-1)

medium Nessus Plugin ID 69972

Synopsis

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

Description

It was discovered that libvirt used the pkcheck tool in an unsafe manner. A local attacker could possibly use this flaw to bypass polkit authentication. In Ubuntu, libvirt polkit authentication is not enabled by default. (CVE-2013-4311)

It was discovered that libvirt incorrectly handled certain memory stats requests. A remote attacker could use this issue to cause libvirt to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 12.10, and Ubuntu 13.04.
(CVE-2013-4296)

It was discovered that libvirt incorrectly handled certain bitmap operations. A remote attacker could use this issue to cause libvirt to crash, resulting in a denial of service. This issue only affected Ubuntu 13.04. (CVE-2013-5651).

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 libvirt-bin and / or libvirt0 packages.

See Also

https://usn.ubuntu.com/1954-1/

Plugin Details

Severity: Medium

ID: 69972

File Name: ubuntu_USN-1954-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 9/19/2013

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libvirt-bin, p-cpe:/a:canonical:ubuntu_linux:libvirt0, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/18/2013

Vulnerability Publication Date: 9/30/2013

Reference Information

CVE: CVE-2013-4296, CVE-2013-4311, CVE-2013-5651

BID: 62508, 62509, 62510

USN: 1954-1