What’s Vulnerable › Vulnerabilities

CVE-2019-17542

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-10-14 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 20.04
• Debian Linux: 8.0, 9.0, 10.0
• FFmpeg: before 2.8.16; from 3.2 before 3.2.15; from 3.4 before 3.4.7; from 4.0 before 4.0.5; from 4.1 before 4.1.5 — fixed in 2.8.16, 3.2.15, 3.4.7, 4.0.5, 4.1.5

How to fix

Upgrade to a fixed version: FFmpeg 2.8.16, 3.2.15, 3.4.7, 4.0.5. Check the vendor advisory for mitigations.

References

• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15919
• https://github.com/FFmpeg/FFmpeg/commit/02f909dc24b1f05cfbba75077c7707b905e63cd2
• https://lists.debian.org/debian-lts-announce/2019/12/msg00003.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html
• https://security.gentoo.org/glsa/202003-65
• https://usn.ubuntu.com/4431-1/
• https://www.debian.org/security/2020/dsa-4722
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15919
• https://github.com/FFmpeg/FFmpeg/commit/02f909dc24b1f05cfbba75077c7707b905e63cd2
• https://lists.debian.org/debian-lts-announce/2019/12/msg00003.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html
• https://security.gentoo.org/glsa/202003-65

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