Mandriva: Updated heimdal packages fix potential
Posted by Benjamin D. Thomas   
Mandrake It was found that the gss_userok() function in Heimdal 0.7.2 did not allocate memory for the ticketfile pointer before calling free(), which could possibly allow remote attackers to have an unknown impact via an invalid username. It is uncertain whether or not this is exploitable, however packages are being provided regardless. The updated packages have been patched to correct these issues.
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 Mandriva Linux Security Advisory                         MDKSA-2007:239
 http://www.mandriva.com/security/
 _______________________________________________________________________
 
 Package : heimdal
 Date    : December 6, 2007
 Affected: Corporate 4.0
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 Problem Description:
 
 It was found that the gss_userok() function in Heimdal 0.7.2 did not
 allocate memory for the ticketfile pointer before calling free(), which
 could possibly allow remote attackers to have an unknown impact via an
 invalid username.  It is uncertain whether or not this is exploitable,
 however packages are being provided regardless.
 
 The updated packages have been patched to correct these issues.
 _______________________________________________________________________

 References:
 
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5939
 _______________________________________________________________________
 
 Updated Packages:
 
 Corporate 4.0:
 be6d53b523a2e480ad3c4ff5c06b3224  corporate/4.0/i586/heimdal-devel-0.7.2-8.1.20060mlcs4.i586.rpm
 54bf58397e29abfde02df9136030d9f2  corporate/4.0/i586/heimdal-libs-0.7.2-8.1.20060mlcs4.i586.rpm
 fa75b430132836b44f23b381f11a52f3  corporate/4.0/i586/heimdal-server-0.7.2-8.1.20060mlcs4.i586.rpm
 f0dffddcb8aa0806c5e2da2f6e8c970e  corporate/4.0/i586/heimdal-workstation-0.7.2-8.1.20060mlcs4.i586.rpm 
 a1f928c65de872d4a289bc74a89a4edd  corporate/4.0/SRPMS/heimdal-0.7.2-8.1.20060mlcs4.src.rpm

 Corporate 4.0/X86_64:
 f4264a1969969c148229bf5a266f10cb  corporate/4.0/x86_64/heimdal-devel-0.7.2-8.1.20060mlcs4.x86_64.rpm
 ac602c09873863c130a9b68dacfd26c8  corporate/4.0/x86_64/heimdal-libs-0.7.2-8.1.20060mlcs4.x86_64.rpm
 61f2cb03ae15b3fe7e7a5dcab47a9c16  corporate/4.0/x86_64/heimdal-server-0.7.2-8.1.20060mlcs4.x86_64.rpm
 9399188193c5d5018878f55328c72b09  corporate/4.0/x86_64/heimdal-workstation-0.7.2-8.1.20060mlcs4.x86_64.rpm 
 a1f928c65de872d4a289bc74a89a4edd  corporate/4.0/SRPMS/heimdal-0.7.2-8.1.20060mlcs4.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