NULL pointer dereference in Ffmpeg
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Ffmpeg
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
References
- github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c (Patch, Third Party Advisory)
- bugs.chromium.org/p/oss-fuzz/issues/detail (Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/202003-65 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2020/dsa-4722 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4431-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/01/msg00026.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17539?
- CVE-2019-17539 is a critical-severity vulnerability in Ffmpeg, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2019-10-14.
- How severe is CVE-2019-17539?
- Critical severity. CVSS v3 base score is 9.8 out of 10.