CVE-2010-2806 Information

Description

Array index error in the t42_parse_sfnts function in type42/t42parse.c in FreeType before 2.4.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via negative size values for certain strings in FontType42 font files leading to a heap-based buffer overflow.

Reference

http://freetype.sourceforge.net/index2.htmlrelease-freetype-2.4.2 http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=c06da1ad34663da7b6fc39b030dc3ae185b96557 http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html http://lists.apple.com/archives/security-announce/2010//Nov/msg00003.html http://marc.info/?l=oss-security&m=128111955616772&w=2 http://secunia.com/advisories/40816 http://secunia.com/advisories/40982 http://secunia.com/advisories/42314 http://secunia.com/advisories/42317 http://sourceforge.net/projects/freetype/files/freetype2/2.4.2/NEWS/view http://support.apple.com/kb/HT4435 http://support.apple.com/kb/HT4456 http://support.apple.com/kb/HT4457 http://www.redhat.com/support/errata/RHSA-2010-0864.html http://www.securityfocus.com/bid/42285 http://www.ubuntu.com/usn/USN-972-1 http://www.vupen.com/english/advisories/2010/2018 http://www.vupen.com/english/advisories/2010/2106 http://www.vupen.com/english/advisories/2010/3045 http://www.vupen.com/english/advisories/2010/3046 https://bugs.launchpad.net/ubuntu/maverick/+source/freetype/+bug/617019 https://bugzilla.redhat.com/show_bug.cgi?id=621980 https://rhn.redhat.com/errata/RHSA-2010-0736.html https://rhn.redhat.com/errata/RHSA-2010-0737.html https://savannah.nongnu.org/bugs/?30656