Ubuntu 12.04 LTS / 12.10 / 13.10 : qemu, qemu-kvm vulnerabilities (USN-2092-1)

Medium Nessus Plugin ID 72231


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


Asias He discovered that QEMU incorrectly handled SCSI controllers with more than 256 attached devices. A local user could possibly use this flaw to elevate privileges. (CVE-2013-4344)

It was discovered that QEMU incorrectly handled Xen disks. A local guest could possibly use this flaw to consume resources, resulting in a denial of service. This issue only affected Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4375)

Sibiao Luo discovered that QEMU incorrectly handled device hot-unplugging. A local user could possibly use this flaw to cause a denial of service. This issue only affected Ubuntu 13.10.

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.


Update the affected packages.

Plugin Details

Severity: Medium

ID: 72231

File Name: ubuntu_USN-2092-1.nasl

Version: $Revision: 1.4 $

Type: local

Agent: unix

Published: 2014/01/31

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6

Temporal Score: 5.2

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:qemu-kvm, p-cpe:/a:canonical:ubuntu_linux:qemu-system, p-cpe:/a:canonical:ubuntu_linux:qemu-system-arm, p-cpe:/a:canonical:ubuntu_linux:qemu-system-mips, p-cpe:/a:canonical:ubuntu_linux:qemu-system-misc, p-cpe:/a:canonical:ubuntu_linux:qemu-system-ppc, p-cpe:/a:canonical:ubuntu_linux:qemu-system-sparc, p-cpe:/a:canonical:ubuntu_linux:qemu-system-x86, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.10

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/01/30

Reference Information

CVE: CVE-2013-4344, CVE-2013-4375, CVE-2013-4377

BID: 62682, 62773, 62934

OSVDB: 97766, 98028, 98332

USN: 2092-1