The str_unescape function in the JavaScript engine in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via unspecified vectors.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-4204
• https://bugzilla.mozilla.org/show_bug.cgi?id=778603
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16766
• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html
• http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html
• http://osvdb.org/87592
• http://secunia.com/advisories/51369
• http://secunia.com/advisories/51370
• http://secunia.com/advisories/51381
• http://secunia.com/advisories/51434
• http://secunia.com/advisories/51439
• http://secunia.com/advisories/51440
• http://www.mozilla.org/security/announce/2012/mfsa2012-96.html
• http://www.ubuntu.com/usn/USN-1636-1
• http://www.ubuntu.com/usn/USN-1638-1
• http://www.ubuntu.com/usn/USN-1638-2
• http://www.ubuntu.com/usn/USN-1638-3