Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before...

Vulnerability Description

Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service (crash) or have unspecified other impact via a PNG image with crafted zTXt chunks, related to (1) the png_push_read_zTXt function in pngread.c, and possibly related to (2) pngtest.c.

References

• http://sourceforge.net/project/shownotes.php?group_id=5624&release_id=624517
• http://www.openwall.com/lists/oss-security/2008/09/09/3
• http://secunia.com/advisories/35386
• http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020521.1-1
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44928
• http://www.vupen.com/english/advisories/2009/1560
• http://www.vupen.com/english/advisories/2009/1462
• http://www.securityfocus.com/bid/31049
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-259989-1
• http://secunia.com/advisories/35302
• http://www.openwall.com/lists/oss-security/2008/09/09/8
• http://www.kb.cert.org/vuls/id/889484
• http://www.vupen.com/english/advisories/2008/2512
• http://security.gentoo.org/glsa/glsa-200812-15.xml
• http://secunia.com/advisories/31781
• http://secunia.com/advisories/33137
• http://sourceforge.net/mailarchive/forum.php?thread_name=e56ccc8f0809180317u6a5306fg14683947affb3e1b%40mail.gmail.com&forum_name=png-mng-implement
• http://sourceforge.net/project/shownotes.php?release_id=624518
• http://support.avaya.com/elmodocs2/security/ASA-2009-208.htm
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:051
• http://sourceforge.net/tracker/index.php?func=detail&aid=2095669&group_id=5624&atid=105624