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Insecure Library Loading
Highly critical

GdkPixbuf Multiple Image Decoding Vulnerabilities

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Release Date:  2004-09-16    Last Update:  2004-10-01    Views:  22,005

Secunia Advisory SA12542

Where:

From remote

Impact:

DoS, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Multiple vulnerabilities have been reported in GdkPixBuf, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

1) A variant of a recently disclosed vulnerability in Qt exists within the BMP image processing functionality. This can be exploited to make an affected application enter an infinite loop when a specially crafted BMP image is processed.

2) An input validation error within the "pixbuf_create_from_xpm()" function when decoding XPM images can be exploited to cause an integer overflow when a specially crafted XPM image is processed.

Successful exploitation may in turn result in a heap-based buffer overflow, which potentially allows execution of arbitrary code.

3) A boundary error within the "xpm_extract_color()" function when decoding XPM images can be exploited to cause a stack-based buffer overflow when a specially crafted XPM image is processed.

Successful exploitation may allow execution of arbitrary code.

4) An input validation error within the ICO image decoding functionality can be exploited to cause an integer overflow when a specially crafted ICO image is processed.

Successful exploitation causes an affected application to crash.


Solution:
Secunia is currently not aware of an official updated version, which addresses the vulnerabilities.

Further details available to Secunia VIM customers

Provided and/or discovered by:
2-4) Chris Evans

Original Advisory:
Chris Evans:
http://scary.beasts.org/security/CESA-2004-005.txt

GNOME Bugzilla:
http://bugzilla.gnome.org/show_bug.cgi?id=150601

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: GdkPixbuf Multiple Image Decoding Vulnerabilities

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