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Security Advisory (MDKSA-2003:118): XFree86


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MandrakeSoft Security Advisory MDKSA-2003:118 : XFree86

 

December 19th, 2003

Updated XFree86 packages fix xdm vulnerability

 

A vulnerability was discovered in the XDM display manager that ships with XFree86. XDM does not check for successful completion of the pam_setcred() call and in the case of error conditions in the installed PAM modules, XDM may grant local root access to any user with valid login credentials. It has been reported that a certain configuration of the MIT pam_krb5 module can result in a failing pam_setcred() call which leaves the session alive and would provide root access to any regular user. It is also possible that this vulnerability can likewise be exploited with other PAM modules in a similar manner.

 

A backported patch from XFree86 4.3 that corrects this vulnerability has been applied to these updated packages.

 

 

The released versions of Mandrake GNU/Linux affected are:

  • 9.0
  • 9.1
  • 9.2
  • 9.2/AMD64
  • Corporate Server 2.1

Full information about this advisory, including the updated packages, is available at:

www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:118

 

Other references:

http://cve.mitre.org/cgi-bin/cvename.cgi?n...e=CAN-2003-0690

 

Posted automatically by aru (mdksec2mub v0.0.7)

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