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Family: Mandrake Local Security Checks --> Category: infos

MDKSA-2003:118: XFree86 Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the XFree86 package

Detailed Explanation for this Vulnerability Test

The remote host is missing the patch for the advisory MDKSA-2003:118 (XFree86).

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.

Solution :
Threat Level: High

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