Oracle Linux 5 : xen (ELSA-2012-1130)

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 2012:1130 :

Updated xen packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
moderate 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.

The xen packages contain administration tools and the xend service for
managing the kernel-xen kernel for virtualization on Red Hat
Enterprise Linux.

A flaw was found in the way the pyGrub boot loader handled compressed
kernel images. A privileged guest user in a para-virtualized guest (a
DomU) could use this flaw to create a crafted kernel image that, when
attempting to boot it, could result in an out-of-memory condition in
the privileged domain (the Dom0). (CVE-2012-2625)

Red Hat would like to thank Xinli Niu for reporting this issue.

All users of xen are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After
installing the updated packages, the xend service must be restarted
for this update to take effect.

See also :

https://oss.oracle.com/pipermail/el-errata/2012-August/002967.html

Solution :

Update the affected xen packages.

Risk factor :

Low / CVSS Base Score : 2.7
(CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:P)
CVSS Temporal Score : 2.0
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68588 ()

Bugtraq ID: 53650

CVE ID: CVE-2012-2625