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Fencer Vulns
critical 9.8

CVE-2019-17542 json

FFmpeg before 4.2 has a heap-based buffer overflow in `vqa_decode_chunk` because of an out-of-array...

published 2019-10-14 7 y ago modified 2026-07-23 3 mo ago also EUVD-2019-7892 , JLSEC-2025-107

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

FFmpeg before 4.2 has a heap-based buffer overflow in vqa_decode_chunk because of an out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.

Patch / fix

  • julia FFMPEG_jll 4.3.1+0
  • ffmpeg ffmpeg 2.8.16, 3.2.15, 3.4.7, 4.0.5, 4.1.5
  • ffmpeg Debian 14, Debian 13, Debian 12 7:4.2.1-1

debian advisories DEBIAN-CVE-2019-17542

  • ffmpeg Ubuntu 16.04 LTS 7:2.8.17-0ubuntu0.1
  • ffmpeg Ubuntu 18.04 LTS 7:3.4.8-0ubuntu0.2

ubuntu advisories UBUNTU-CVE-2019-17542

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

  • ffmpeg SLE Workstation Extension 15 SP1, SLE Workstation Extension 15, SLE Module for Package Hub 15 SP1 +3 more 3.4.2-4.27.1

suse advisories SUSE-SU-2019:3184-2SUSE-SU-2019:3184-1

  • ffmpeg Alpine 3.10 4.1.5-r0
  • ffmpeg Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 4.2-r0
  • ffmpeg Alpine 3.9 4.0.6-r0
  • ffmpeg4 Alpine 3.22, Alpine 3.21, Alpine 3.20 +4 more 4.2-r0

alpine advisories ALPINE-CVE-2019-17542

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia FFMPEG_jll
<4.3.1+0
4.3.1+0

Classification

Weakness

References

Sources

Fencer Vulns 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.