Oracle Linux 6 : qemu-kvm (ELSA-2013-1553)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2013:1553 :

Updated qemu-kvm packages that fix one security issue, several bugs,
and add various enhancements are now available for Red Hat Enterprise
Linux 6.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System
(CVSS) base score, which gives a detailed severity rating, is
available from the CVE link in the References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on AMD64 and Intel 64 systems that is built into the
standard Red Hat Enterprise Linux kernel. The qemu-kvm packages form
the user-space component for running virtual machines using KVM.

A buffer overflow flaw was found in the way QEMU processed the SCSI
'REPORT LUNS' command when more than 256 LUNs were specified for a
single SCSI target. A privileged guest user could use this flaw to
corrupt QEMU process memory on the host, which could potentially
result in arbitrary code execution on the host with the privileges of
the QEMU process. (CVE-2013-4344)

This issue was discovered by Asias He of Red Hat.

These updated qemu-kvm packages include numerous bug fixes and various
enhancements. Space precludes documenting all of these changes in this
advisory. Users are directed to the Red Hat Enterprise Linux 6.5
Technical Notes, linked to in the References, for information on the
most significant of these changes.

All qemu-kvm users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues and add these
enhancements. After installing this update, shut down all running
virtual machines. Once all virtual machines have shut down, start them
again for this update to take effect.

See also :

https://oss.oracle.com/pipermail/el-errata/2013-November/003823.html

Solution :

Update the affected qemu-kvm packages.

Risk factor :

Medium / CVSS Base Score : 6.0
(CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C)
CVSS Temporal Score : 5.2
(CVSS2#E:ND/RL:OF/RC:ND)
Public Exploit Available : false

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 71127 ()

Bugtraq ID: 57420
59675
61388
62773

CVE ID: CVE-2013-4344