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October 2007

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Subject:
Security ERRATA for xen on SL5.x i386/x86_64
From:
Connie Sieh <[log in to unmask]>
Reply To:
Connie Sieh <[log in to unmask]>
Date:
Thu, 4 Oct 2007 10:38:51 -0500
Content-Type:
TEXT/PLAIN
Parts/Attachments:
TEXT/PLAIN (45 lines) 
Synopsis:          Important: xen security update

CVE Names:
 	CVE-2007-1320
 	CVE-2007-1321
 	CVE-2007-4993

Detail:

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)

SL5.x

   SRPMS:
 	xen-3.0.3-25.0.4.el5.src.rpm

   i386:
 	xen-3.0.3-25.0.4.el5.i386.rpm
 	xen-devel-3.0.3-25.0.4.el5.i386.rpm
 	xen-libs-3.0.3-25.0.4.el5.i386.rpm

   x86_64:
 	xen-3.0.3-25.0.4.el5.x86_64.rpm
 	xen-devel-3.0.3-25.0.4.el5.i386.rpm
 	xen-devel-3.0.3-25.0.4.el5.x86_64.rpm
 	xen-libs-3.0.3-25.0.4.el5.i386.rpm
 	xen-libs-3.0.3-25.0.4.el5.x86_64.rpm

-Connie Sieh
-Troy Dawson

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