CVE-2019-17539

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733Issue Tracking, Third Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670cPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-65Third Party Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733Issue Tracking, Third Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670cPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202003-65Third Party Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory

Timeline

Published: Oct 14, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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