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Test ID:1.3.6.1.4.1.25623.1.0.58953
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2007:0323
Summary:NOSUMMARY
Description:Description:

The remote host is missing updates announced in
advisory RHSA-2007:0323.

The Xen package contains the tools for managing the virtual machine monitor
in Red Hat Enterprise Linux virtualization.

The following security flaws are fixed in the updated Xen package:

Joris van Rantwijk found a flaw in the Pygrub utility which is used as a
boot loader for guest domains. A malicious local administrator of a guest
domain could create a carefully crafted grub.conf file which would trigger
the execution of arbitrary code outside of that domain. (CVE-2007-4993)

Tavis Ormandy discovered a heap overflow flaw during video-to-video copy
operations in the Cirrus VGA extension code used in Xen. A malicious local
administrator of a guest domain could potentially trigger this flaw and
execute arbitrary code outside of the domain. (CVE-2007-1320)

Tavis Ormandy discovered insufficient input validation leading to a heap
overflow in the Xen NE2000 network driver. If the driver is in use, a
malicious local administrator of a guest domain could potentially trigger
this flaw and execute arbitrary code outside of the domain. Xen does not
use this driver by default. (CVE-2007-1321)

Users of Xen should update to these erratum packages containing backported
patches which correct these issues.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2007-0323.html
http://www.redhat.com/security/updates/classification/#important

Risk factor : High

CVSS Score:
7.2

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2007-1320
BugTraq ID: 23731
http://www.securityfocus.com/bid/23731
Debian Security Information: DSA-1284 (Google Search)
http://www.debian.org/security/2007/dsa-1284
Debian Security Information: DSA-1384 (Google Search)
http://www.debian.org/security/2007/dsa-1384
https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00082.html
https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00706.html
https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00935.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:203
http://www.mandriva.com/security/advisories?name=MDVSA-2008:162
http://taviso.decsystem.org/virtsec.pdf
http://osvdb.org/35494
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10315
http://www.redhat.com/support/errata/RHSA-2007-0323.html
http://secunia.com/advisories/25073
http://secunia.com/advisories/25095
http://secunia.com/advisories/27047
http://secunia.com/advisories/27085
http://secunia.com/advisories/27103
http://secunia.com/advisories/27486
http://secunia.com/advisories/29129
http://secunia.com/advisories/30413
http://secunia.com/advisories/33568
SuSE Security Announcement: SUSE-SR:2009:002 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2009-01/msg00004.html
http://www.vupen.com/english/advisories/2007/1597
Common Vulnerability Exposure (CVE) ID: CVE-2007-1321
https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00030.html
https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00004.html
http://osvdb.org/35495
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9302
http://securitytracker.com/id?1018761
http://secunia.com/advisories/27072
http://www.attrition.org/pipermail/vim/2007-October/001842.html
Common Vulnerability Exposure (CVE) ID: CVE-2007-4993
BugTraq ID: 25825
http://www.securityfocus.com/bid/25825
Bugtraq: 20071008 rPSA-2007-0210-1 xen (Google Search)
http://www.securityfocus.com/archive/1/481825/100/0/threaded
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11240
http://secunia.com/advisories/26986
http://secunia.com/advisories/27141
http://secunia.com/advisories/27161
http://www.ubuntu.com/usn/usn-527-1
http://www.vupen.com/english/advisories/2007/3348
CopyrightCopyright (c) 2007 E-Soft Inc. http://www.securityspace.com

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