CVE-2010-2806

MEDIUM

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.

References

http://freetype.sourceforge.net/index2.html#release-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

Details

Source: MITRE

Published: 2010-08-19

Updated: 2011-01-12

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM