libpng Integer Overflow and Buffer Overflow Vulnerabilities - Advisories

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libpng Integer Overflow and Buffer Overflow Vulnerabilities

Secunia Advisory:	SA12902
Release Date:	2004-10-22
Last Update:	2004-10-25

Critical:	Highly critical
Impact:	System access
Where:	From remote
Solution Status:	Vendor Patch

Software:	libpng 1.x

CVE reference:	CVE-2004-0955 (Secunia mirror)

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Description: Two vulnerabilities have been reported in libpng, which potentially can be exploited by malicious people to compromise a user's system. A boundary error in the "png_handle_tRNS()" function and an integer overflow in the "png_read_png()" function can be exploited to cause buffer overflows by tricking a user into viewing a specially crafted PNG image with an application linked to the vulnerable library. Successful exploitation may allow execution of arbitrary code. The vulnerabilities in this advisory are related to: SA12219 Solution: Update to version 1.0.16 or 1.2.6. http://www.libpng.org/pub/png/libpng.html Provided and/or discovered by: Reported in a Debian advisory. Changelog: 2004-10-25: Updated "Solution" section. Original Advisory: http://www.debian.org/security/2004/dsa-570 Other References: SA12219: http://secunia.com/advisories/12219/



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.

8 Related Secunia Security Advisories

1. libpng Unknown Chunk Processing Uninitialized Memory Access

2. libpng ICC Profile Chunk Denial of Service Vulnerability

3. libpng Multiple Denial of Service Vulnerabilities

4. libpng tRNS Chunk Denial of Service

5. libpng sPLT Chunk Handling Denial of Service

6. libpng "png_set_strip_alpha()" Buffer Overflow Vulnerability

7. libpng Multiple Vulnerabilities

8. libpng Potential Denial of Service Vulnerability

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