CVE-2014-8543 json
libavcodec/mmvideo.c in FFmpeg before 2.4.2 does not consider all lines of HHV Intra blocks during validation of image height, which allows…
published 2014-11-05 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-8380
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.1%
- EPSS 3.1% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
libavcodec/mmvideo.c in FFmpeg before 2.4.2 does not consider all lines of HHV Intra blocks during validation of image height, which allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted MM video data.
Patch / fix
- ffmpeg Debian 14, Debian 13, Debian 12 7:2.4.3-1
debian advisories DEBIAN-CVE-2014-8543
- libav Ubuntu 14.04 LTS 6:9.18-0ubuntu0.14.04.1
ubuntu advisories UBUNTU-CVE-2014-8543
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
3.08% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
ubuntu.com
/usn/USN-2534-1
vendor-advisory
-
security.gentoo.org
/glsa/201603-06
vendor-advisory
-
ffmpeg.org
/security.html
vendor-advisory
- git.videolan.org /?p=ffmpeg.git%3Ba=commit%3Bh=8b0e96e1f21b761ca15dbb470cd619a1ebf86c3e
Sources
- CVE List CVE-2014-8543
- NVD CVE-2014-8543
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.