VulnerabilityModified
CVE-2019-17539
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.
CRITICAL 9.8EPSS 2.03%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.03% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- ffmpeg/ffmpeg · debian/debian linux · canonical/ubuntu linux
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.