Secunia Logo  
 
GD Graphics Library "gdImageStringFTEx()" Denial of Service
Secunia Advisory: SA23916
Release Date: 2007-01-29
Popularity: 7,560 views

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Unpatched

Software:GD Graphics Library 2.x

Subscribe: Instant alerts on relevant vulnerabilities

CVE reference:CVE-2007-0455


Description:
Kees Cook has reported a vulnerability in GD Graphics Library, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the "gdImageStringFTEx()" function in gdft.c, which can be exploited to increment the terminating NULL of a string, potentially resulting in a buffer overflow.

Successful exploitation requires that a JIS-encoded font is used.

Solution:
Do not use JIS-encoded fonts with an application using GD Graphics Library.

Provided and/or discovered by:
Kees Cook

Original Advisory:
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=224607


Track this Secunia Advisory
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.

Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.

About this Secunia Advisory
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.
  
Latest Advisories

Today
New advisories: 6
New vulnerabilities: 18
Updated advisories: 9

Less // 126 views
Red Hat update for kernel
Less // 120 views
Ubuntu update for bind9
Less // 106 views
Ubuntu update for ntp
Less // 120 views
Red Hat update for bind

8th Jan, 2009
New advisories: 24
New vulnerabilities: 99
Updated advisories: 26


Solutions | More...  


Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

Ideas, suggestions, and other feedback are most welcome.

Most Popular - 3 Hours

1. Red Hat update for kernel // 105 views
2. Ubuntu update for bind9 // 104 views
3. Red Hat update for bind // 102 views
4. Ubuntu update for ntp // 92 views
5. SAP GUI TabOne ActiveX Control Caption List Buffer Overflow // 49 views
6. ISC BIND "EVP_VerifyFinal()" and "DSA_do_verify()" Spoofing Vulnerability // 37 views
7. Sun Java JDK / JRE Multiple Vulnerabilities // 35 views
8. NTP OpenSSL "EVP_VerifyFinal()" Spoofing Vulnerability // 32 views
9. Cisco Global Site Selector DNS Request Denial of Service // 32 views
10. Soholaunch Pro "_SESSION[docroot_path]" File Inclusion // 28 views