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XFree86 PCF Integer Overflow Vulnerabilities Advisory Available in Danish 

Secunia Advisory: SA21446  
Release Date: 2006-08-11

Critical:
Moderately critical
Impact: DoS
System access
Where: From remote
Solution Status: Unpatched

Software:XFree86 4.1.x
XFree86 4.2.x
XFree86 4.3.x
XFree86 4.4.x
XFree86 4.5.x
XFree86 4.6.x

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
A vulnerability has been reported in XFree86, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

The vulnerability is caused due to integer overflows in the PCF font parser and can be exploited to crash the X server and potentially execute arbitrary code.

This is related to:
SA20100

Solution:
Do not parse untrusted PCF font files.

Other References:
SA20100:
http://secunia.com/advisories/20100/



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

9 Related Secunia Security Advisories

1. XFree86 X Font Server Multiple Vulnerabilities
2. XFree86 Multiple Vulnerabilities
3. XFree86 "DBE" and "Render" Extensions Vulnerabilities
4. XFree86 CID Encoded Fonts Integer Overflows
5. XFree86 Pixmap Creation Integer Overflow Vulnerability
6. XFree86 Multiple Vulnerabilities
7. XFree86 "font.alias" File Parsing Privilege Escalation Vulnerabilities
8. XFree Weak Session Cookies
9. XFree86 Multiple Integer Overflow Vulnerabilities


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