WebKitGTK+ is vulnerable to denial of service (DoS). Due use-after-free flaws caused by vectors involving selections, malicious web content leads an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application.
lists.apple.com/archives/security-announce/2010//Nov/msg00003.html
lists.apple.com/archives/security-announce/2010//Sep/msg00001.html
lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
secunia.com/advisories/41856
secunia.com/advisories/42314
secunia.com/advisories/43068
secunia.com/advisories/43086
support.apple.com/kb/HT4333
support.apple.com/kb/HT4456
trac.webkit.org/changeset/64706
www.computerworld.com/s/article/9195058/Researcher_to_release_Web_based_Android_attack
www.mandriva.com/security/advisories?name=MDVSA-2011:039
www.redhat.com/support/errata/RHSA-2011-0177.html
www.securityfocus.com/bid/43047
www.ubuntu.com/usn/USN-1006-1
www.vupen.com/english/advisories/2010/2722
www.vupen.com/english/advisories/2010/3046
www.vupen.com/english/advisories/2011/0212
www.vupen.com/english/advisories/2011/0216
www.vupen.com/english/advisories/2011/0552
access.redhat.com/errata/RHSA-2011:0177
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=627703
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11964