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 _______________________________________________________________________
 
 Mandriva Linux Security Advisory                         MDKSA-2007:203
 http://www.mandriva.com/security/
 _______________________________________________________________________
 
 Package : xen
 Date    : November 1, 2007
 Affected: 2007.0, 2007.1, Corporate 4.0
 _______________________________________________________________________
 
 Problem Description:
 
 Tavis Ormandy discovered a heap overflow flaw during video-to-video
 copy operations in the Cirrus VGA extension code that is 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 also discovered insufficient input validation leading to
 a heap overflow in the NE2000 network driver in Xen.  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 (CVE-2007-1321, CVE-2007-5729, CVE-2007-5730).
 
 Steve Kemp found that xen-utils used insecure temporary files within
 the xenmon tool that could allow local users to truncate arbitrary
 files (CVE-2007-3919).
 
 Joris van Rantwijk discovered a flaw in Pygrub, 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
 could trigger the execution of arbitrary code outside of that domain
 (CVE-2007-4993).
 
 Updated packages have been patched to prevent these issues.
 _______________________________________________________________________

 References:
 
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1320
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1321
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3919
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4993
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5729
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5730
 _______________________________________________________________________
 
 Updated Packages:
 
 Mandriva Linux 2007.0:
 70b7495f9eb6597b8dcff92a6a698a28 
 2007.0/i586/xen-3.0.3-0.20060703.3.1mdv2007.0.i586.rpm 
 c939b93cb67251235a9c8f2824609702 
 2007.0/SRPMS/xen-3.0.3-0.20060703.3.1mdv2007.0.src.rpm

 Mandriva Linux 2007.0/X86_64:
 f35d3563e67a0a887c439657b2e29afb 
 2007.0/x86_64/xen-3.0.3-0.20060703.3.1mdv2007.0.x86_64.rpm 
 c939b93cb67251235a9c8f2824609702 
 2007.0/SRPMS/xen-3.0.3-0.20060703.3.1mdv2007.0.src.rpm

 Mandriva Linux 2007.1:
 183ef09d8ed8171adc894cbb606f922f 
 2007.1/i586/xen-3.0.3-0.20060703.5.1mdv2007.1.i586.rpm 
 f4a0bfc9c6d5ae01664c8a906580b873 
 2007.1/SRPMS/xen-3.0.3-0.20060703.5.1mdv2007.1.src.rpm

 Mandriva Linux 2007.1/X86_64:
 c05336d0eef357b2b2c191286c4d679e 
 2007.1/x86_64/xen-3.0.3-0.20060703.5.1mdv2007.1.x86_64.rpm 
 f4a0bfc9c6d5ae01664c8a906580b873 
 2007.1/SRPMS/xen-3.0.3-0.20060703.5.1mdv2007.1.src.rpm

 Corporate 4.0:
 ec6876abb87e57d61257f3b3c6659c22 
 corporate/4.0/i586/xen-3.0.1-3.1.20060mlcs4.i586.rpm 
 72a302b77a88766cc43276e431dabf79 
 corporate/4.0/SRPMS/xen-3.0.1-3.1.20060mlcs4.src.rpm

 Corporate 4.0/X86_64:
 894c37bcf10d4ec8973ed11a5613aeb5 
 corporate/4.0/x86_64/xen-3.0.1-3.1.20060mlcs4.x86_64.rpm 
 72a302b77a88766cc43276e431dabf79 
 corporate/4.0/SRPMS/xen-3.0.1-3.1.20060mlcs4.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrivaUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 All packages are signed by Mandriva for security.  You can obtain the
 GPG public key of the Mandriva Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandriva Linux at:

  http://www.mandriva.com/security/advisories

 If you want to report vulnerabilities, please contact

  security_(at)_mandriva.com
 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team
  <security*mandriva.com>
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