The CSS parser (khtml/css/cssparser.cpp) in Konqueror in KDE 4.7.3 allows remote attackers to cause a denial of service (crash) and possibly read memory via a crafted font face source, related to "type confusion."

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-4512
• http://archives.neohapsis.com/archives/bugtraq/2012-11/0005.html
• http://em386.blogspot.com/2010/12/webkit-css-type-confusion.html
• http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=a872c8a969a8bd3706253d6ba24088e4f07f3352
• 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
• https://access.redhat.com/errata/RHSA-2012:1416
• https://access.redhat.com/errata/RHSA-2012:1418
• https://access.redhat.com/security/cve/CVE-2012-4512
• https://bugzilla.redhat.com/show_bug.cgi?id=865779