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Test ID:1.3.6.1.4.1.25623.1.0.871473
Category:Red Hat Local Security Checks
Title:RedHat Update for xen RHSA-2015:2065-01
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 heap buffer overflow flaw was found in the way QEMU's NE2000 NIC
emulation implementation handled certain packets received over the network.
A privileged user inside a guest could use this flaw to crash the QEMU
instance (denial of service) or potentially execute arbitrary code on the
host. (CVE-2015-5279)

Red Hat would like to thank Qinghao Tang of QIHU 360 Inc. for reporting
this issue.

All xen users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
updated packages, all running fully-virtualized guests 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:
7.2

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-5279
BugTraq ID: 76746
http://www.securityfocus.com/bid/76746
Debian Security Information: DSA-3361 (Google Search)
http://www.debian.org/security/2015/dsa-3361
Debian Security Information: DSA-3362 (Google Search)
http://www.debian.org/security/2015/dsa-3362
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html
https://security.gentoo.org/glsa/201602-01
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg03984.html
http://www.openwall.com/lists/oss-security/2015/09/15/3
RedHat Security Advisories: RHSA-2015:1896
http://rhn.redhat.com/errata/RHSA-2015-1896.html
RedHat Security Advisories: RHSA-2015:1923
http://rhn.redhat.com/errata/RHSA-2015-1923.html
RedHat Security Advisories: RHSA-2015:1924
http://rhn.redhat.com/errata/RHSA-2015-1924.html
RedHat Security Advisories: RHSA-2015:1925
http://rhn.redhat.com/errata/RHSA-2015-1925.html
http://www.securitytracker.com/id/1033569
SuSE Security Announcement: SUSE-SU-2015:1782 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html
CopyrightCopyright (C) 2015 Greenbone Networks GmbH

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