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libpng Multiple Vulnerabilities
Secunia Advisory:	SA12219	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2004-08-05
Last Update:	2004-08-16
Popularity:	35,340 views

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

Software:	libpng 1.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2004-0597 CVE-2004-0598 CVE-2004-0599

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. http://www.libpng.org/pub/png/libpng.html Provided and/or discovered by: Chris Evans Changelog: 2004-08-16: Updated "Solution" section. Original Advisory: libpng: http://www.libpng.org/pub/png/libpng.html Chris Evans: http://scary.beasts.org/security/CESA-2004-001.txt Other References: US-CERT VU# http://www.kb.cert.org/vuls/id/388984 US-CERT VU# http://www.kb.cert.org/vuls/id/160448 US-CERT VU# http://www.kb.cert.org/vuls/id/236656 US-CERT VU# http://www.kb.cert.org/vuls/id/286464 US-CERT VU# http://www.kb.cert.org/vuls/id/477512 US-CERT VU# http://www.kb.cert.org/vuls/id/817368

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