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Insecure Library Loading
Highly critical

libpng Multiple Vulnerabilities

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Release Date:  2004-08-05    Last Update:  2004-08-16    Views:  45,888

Secunia Advisory SA12219

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Chris Evans has discovered multiple vulnerabilities in libpng, which can be exploited by malicious people to compromise a vulnerable system or cause a DoS (Denial of Service).

The vulnerabilities are caused due to NULL pointer dereference errors and boundary errors within various functions when processing PNG files. Some of these can be exploited to cause stack-based buffer overflows via specially crafted PNG files.

The vulnerabilities can e.g. be exploited by tricking a user into visiting a malicious website or view a malicious email with an affected application linked to libpng.


Solution:
Update to version 1.2.6.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Chris Evans

Original Advisory:
libpng:
http://www.libpng.org/pub/png/libpng.html

Chris Evans:
http://scary.beasts.org/security/CESA-2004-001.txt

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: libpng Multiple Vulnerabilities

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