CVE-2020-12284
CRITICAL severity · CVSS 9.8 · Out-of-bounds write
9.8CVSS CRITICAL
Summary
cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726 ↗
Additional information
- NVD record
- https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726Patch
- https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99Patch
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734Advisory
- https://security.gentoo.org/glsa/202007-58Advisory
- https://usn.ubuntu.com/4431-1/Advisory
- https://www.debian.org/security/2020/dsa-4722Advisory