Description

The tt_sbit_decoder_init function in sfnt/ttsbit.c in FreeType before 2.5.4 proceeds with a count-to-size association without restricting the count value, which allows remote attackers to cause a denial of service (integer overflow and out-of-bounds read) or possibly have unspecified other impact via a crafted embedded bitmap.

References

http://advisories.mageia.org/MGASA-2015-0083.html

http://code.google.com/p/google-security-research/issues/detail?id=167

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=257c270bd25e15890190a28a1456e7623bba4439

http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150148.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-February/150162.html

http://lists.opensuse.org/opensuse-updates/2015-03/msg00091.html

http://www.debian.org/security/2015/dsa-3188

http://www.mandriva.com/security/advisories?name=MDVSA-2015:055

http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

http://www.securityfocus.com/bid/72986

http://www.ubuntu.com/usn/USN-2510-1

http://www.ubuntu.com/usn/USN-2739-1

https://security.gentoo.org/glsa/201503-05

Details

Risk Information

CVSS v2