Ubuntu 12.04 LTS / 12.10 / 13.10 : libvirt vulnerabilities (USN-2093-1)

medium Nessus Plugin ID 72232

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Synopsis

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

Description

Martin Kletzander discovered that libvirt incorrectly handled reading memory tunables from LXC guests. A local user could possibly use this flaw to cause libvirtd to crash, resulting in a denial of service.
This issue only affected Ubuntu 13.10. (CVE-2013-6436)

Dario Faggioli discovered that libvirt incorrectly handled the libxl driver. A local user could possibly use this flaw to cause libvirtd to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 13.10. (CVE-2013-6457)

It was discovered that libvirt contained multiple race conditions in block device handling. A remote read-only user could use this flaw to cause libvirtd to crash, resulting in a denial of service.
(CVE-2013-6458)

Eric Blake discovered that libvirt incorrectly handled certain ACLs.
An attacker could use this flaw to possibly obtain certain sensitive information. This issue only affected Ubuntu 13.10. (CVE-2014-0028)

Jiri Denemark discovered that libvirt incorrectly handled keepalives.
A remote attacker could possibly use this flaw to cause libvirtd to crash, resulting in a denial of service. (CVE-2014-1447).

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.

Plugin Details

Severity: Medium

ID: 72232

File Name: ubuntu_USN-2093-1.nasl

Version: 1.8

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 1/31/2014

Updated: 1/19/2021

Supported Sensors: Agentless Assessment, Continuous 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: Medium

Base Score: 6.8

Temporal Score: 5.9

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libvirt0, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libvirt-bin

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/30/2014

Vulnerability Publication Date: 1/7/2014

Reference Information

CVE: CVE-2013-6436, CVE-2013-6457, CVE-2013-6458, CVE-2014-0028, CVE-2014-1447

BID: 64549, 64723, 64945, 64963, 65004

USN: 2093-1

Detections

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