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CVE-2019-17539

critical

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.

References

https://www.debian.org/security/2020/dsa-4722

https://usn.ubuntu.com/4431-1/

https://security.gentoo.org/glsa/202003-65

https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html

https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733

Details

Source: Mitre, NVD

Published: 2019-10-14

Updated: 2021-06-10

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00523