CVE-2010-0166 Information

Description

The gfxTextRun::SanitizeGlyphRuns function in gfx/thebes/src/gfxFont.cpp in the browser engine in Mozilla Firefox 3.6 before 3.6.2 on Mac OS X when the Core Text API is used does not properly perform certain deletions which allows remote attackers to cause a denial of service (memory corruption and application crash) and possibly execute arbitrary code via an HTML document containing invisible Unicode characters as demonstrated by the U+FEFF U+FFF9 U+FFFA and U+FFFB characters.

Reference

http://www.mozilla.org/security/announce/2010/mfsa2010-11.html http://www.securityfocus.com/bid/38918 http://www.securityfocus.com/bid/38943 http://www.vupen.com/english/advisories/2010/0692 https://bugzilla.mozilla.org/show_bug.cgi?id=538065 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A14182