RHEL 5 : kvm (RHSA-2014:0163)

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated kvm packages that fix two security issues are now available
for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
Important security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module
built for the standard Red Hat Enterprise Linux kernel.

A divide-by-zero flaw was found in the apic_get_tmcct() function in
KVM's Local Advanced Programmable Interrupt Controller (LAPIC)
implementation. A privileged guest user could use this flaw to crash
the host. (CVE-2013-6367)

A memory corruption flaw was discovered in the way KVM handled virtual
APIC accesses that crossed a page boundary. A local, unprivileged user
could use this flaw to crash the system or, potentially, escalate
their privileges on the system. (CVE-2013-6368)

Red Hat would like to thank Andrew Honig of Google for reporting these
issues.

All kvm users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. Note: the
procedure in the Solution section must be performed before this update
will take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2013-6367.html
https://www.redhat.com/security/data/cve/CVE-2013-6368.html
http://rhn.redhat.com/errata/RHSA-2014-0163.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.2
(CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.4
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 72473 ()

Bugtraq ID: 64270
64291

CVE ID: CVE-2013-6367
CVE-2013-6368