CVE-2020-12284

HIGH

Description

cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734

https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726

https://security.gentoo.org/glsa/202007-58

https://usn.ubuntu.com/4431-1/

https://www.debian.org/security/2020/dsa-4722

Details

Source: MITRE

Published: 2020-04-28

Updated: 2020-07-28

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL