libavcodec/jpeg2000dec.c in FFmpeg before 2.1 does not ensure the use of valid code-block dimension values, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted JPEG2000 data.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-7018
• FFmpeg/FFmpeg@9a271a9
• https://security.gentoo.org/glsa/201603-06
• https://trac.ffmpeg.org/ticket/2895
• http://ffmpeg.org/security.html
• http://openwall.com/lists/oss-security/2013/11/26/7
• http://openwall.com/lists/oss-security/2013/12/08/3