CVE-2019-17539
CRITICAL severity · CVSS 9.8 · CWE-476
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c ↗
Additional information
- NVD record
- https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670cPatch
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00026.htmlAdvisory
- https://security.gentoo.org/glsa/202003-65Advisory
- https://usn.ubuntu.com/4431-1/Advisory
- https://www.debian.org/security/2020/dsa-4722Advisory