CVE-2012-4513 Information

Description

khtml/imload/scaledimageplane.h in Konqueror in KDE 4.7.3 allows remote attackers to cause a denial of service (crash) and possibly read memory via large canvas dimensions which leads to an unexpected sign extension and a heap-based buffer over-read.

Reference

http://archives.neohapsis.com/archives/bugtraq/2012-11/0005.html http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=1f8b1b034ccf1713a5d123a4c327290f86d17d53 http://rhn.redhat.com/errata/RHSA-2012-1416.html http://rhn.redhat.com/errata/RHSA-2012-1418.html http://secunia.com/advisories/51097 http://secunia.com/advisories/51145 http://www.nth-dimension.org.uk/pub/NDSA20121010.txt.asc http://www.openwall.com/lists/oss-security/2012/10/11/11 http://www.openwall.com/lists/oss-security/2012/10/30/6 http://www.securitytracker.com/id?1027709