X.Org X Server PCF Font Parser Buffer Overflow Vulnerability

X.Org X Server is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input.

Attackers can exploit this issue to execute arbitrary code with the privileges of the server. Failed attacks will cause denial-of-service conditions.

NOTE: This vulnerability was previously covered in BID 27336 (X.Org X Server Multiple Local Privilege Escalation and Information Disclosure Vulnerabilities), but has been given its own record to better document the issue.


 

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