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TITLE:
XFreeX86 "DBE" and "Renderer" Extensions Vulnerabilities

SECUNIA ADVISORY ID:
SA23684

VERIFY ADVISORY:
http://secunia.com/advisories/23684/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
XFree86 4.1.x
http://secunia.com/product/3012/
XFree86 4.2.x
http://secunia.com/product/3011/
XFree86 4.3.x
http://secunia.com/product/1131/
XFree86 4.5.x
http://secunia.com/product/4870/
XFree86 4.4.x
http://secunia.com/product/3510/
XFree86 4.6.x
http://secunia.com/product/11386/

DESCRIPTION:
Sean Larsson has reported some vulnerabilities in XFree86, which can
be exploited by malicious, local users to gain escalated privileges.

For more information:
SA23670

SOLUTION:
Do not load the "DBE" or "Renderer" extension. Restrict access to
trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Sean Larsson, iDefense Labs

ORIGINAL ADVISORY:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=463
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=464
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=465

OTHER REFERENCES:
SA23670:
http://secunia.com/advisories/23670/

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