CVE-2019-17539
CRITICALCVSS 9.8/10EPSS 2.01%
Last modified
CVE-2019-17539 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.01% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | < 3.4.7 |
| Ffmpeg | Ffmpeg | >= 4.0, < 4.0.5 |
| Ffmpeg | Ffmpeg | >= 4.1, < 4.1.5 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-17539?
CVE-2019-17539 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.01% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17539?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-17539?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST