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Test ID:1.3.6.1.4.1.25623.1.0.870797
Category:Red Hat Local Security Checks
Title:RedHat Update for xen RHSA-2012:1130-01
Summary:The remote host is missing an update for the 'xen'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'xen'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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.

Affected Software/OS:
xen on Red Hat Enterprise Linux (v. 5 server)

Solution:
Please Install the Updated Packages.

CVSS Score:
2.7

CVSS Vector:
AV:A/AC:L/Au:S/C:N/I:N/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2012-2625
BugTraq ID: 53650
http://www.securityfocus.com/bid/53650
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817
http://www.openwall.com/lists/oss-security/2012/10/26/3
RedHat Security Advisories: RHSA-2012:1130
http://rhn.redhat.com/errata/RHSA-2012-1130.html
http://www.securitytracker.com/id?1027090
http://secunia.com/advisories/49184
http://secunia.com/advisories/51413
SuSE Security Announcement: SUSE-SU-2012:1043 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html
SuSE Security Announcement: SUSE-SU-2012:1044 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html
SuSE Security Announcement: SUSE-SU-2012:1135 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html
SuSE Security Announcement: openSUSE-SU-2012:1172 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html
SuSE Security Announcement: openSUSE-SU-2012:1174 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html
SuSE Security Announcement: openSUSE-SU-2012:1572 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
SuSE Security Announcement: openSUSE-SU-2012:1573 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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