Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : qemu, qemu-kvm vulnerabilities (USN-2745-1)

Critical Nessus Plugin ID 86146

Synopsis

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

Description

Lian Yihan discovered that QEMU incorrectly handled certain payload messages in the VNC display driver. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-5239)

Qinghao Tang discovered that QEMU incorrectly handled receiving certain packets in the NE2000 network driver. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service. (CVE-2015-5278)

Qinghao Tang discovered that QEMU incorrectly handled receiving certain packets in the NE2000 network driver. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2015-5279)

Qinghao Tang discovered that QEMU incorrectly handled transmit descriptor data when sending network packets. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service. (CVE-2015-6815)

Qinghao Tang discovered that QEMU incorrectly handled ATAPI command permissions. A malicious guest could use this issue to cause the QEMU process to crash, resulting in a denial of service. (CVE-2015-6855).

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 packages.

See Also

https://usn.ubuntu.com/2745-1/

Plugin Details

Severity: Critical

ID: 86146

File Name: ubuntu_USN-2745-1.nasl

Version: 2.8

Type: local

Agent: unix

Published: 2015/09/25

Updated: 2019/09/18

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

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-aarch64, 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:14.04, cpe:/o:canonical:ubuntu_linux:15.04

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: 2015/09/24

Vulnerability Publication Date: 2015/09/28

Reference Information

CVE: CVE-2015-5239, CVE-2015-5278, CVE-2015-5279, CVE-2015-6815, CVE-2015-6855

USN: 2745-1