CVE-2019-17539

moderate-risk
Published 2019-10-14

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.

Do I need to act?

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0.67% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Debian Canonical Ffmpeg

References (12)

Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733
Patch https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c
Mailing List https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html
Third Party Advisory https://security.gentoo.org/glsa/202003-65
Third Party Advisory https://usn.ubuntu.com/4431-1/
Third Party Advisory https://www.debian.org/security/2020/dsa-4722
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733
Patch https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c
Mailing List https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html
Third Party Advisory https://security.gentoo.org/glsa/202003-65
Third Party Advisory https://usn.ubuntu.com/4431-1/
Third Party Advisory https://www.debian.org/security/2020/dsa-4722
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 13/34 · Low