Description

The tt_cmap4_validate function in sfnt/ttcmap.c in FreeType before 2.5.4 validates a certain length field before that field's value is completely calculated, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted cmap SFNT table.

References

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

http://code.google.com/p/google-security-research/issues/detail?id=184

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=9bd20b7304aae61de5d50ac359cf27132bafd4c1

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://rhn.redhat.com/errata/RHSA-2015-0696.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