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

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


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.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 86146 ()

Bugtraq ID:

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

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now