CVE-2019-17539

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c third party advisory patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733 third party advisory issue tracking
https://security.gentoo.org/glsa/202003-65 third party advisory vendor advisory
https://www.debian.org/security/2020/dsa-4722 third party advisory vendor advisory
https://usn.ubuntu.com/4431-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-17539?
CVE-2019-17539 has been scored as a critical severity vulnerability.
How to fix CVE-2019-17539?
To fix CVE-2019-17539, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-17539 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-17539 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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