CVE-2018-6621
MEDIUMCVSS 6.5/10EPSS 2.18%
Last modified
CVE-2018-6621 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.. EPSS estimates a 2.18% chance of exploitation in the next 30 days.
Description
The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | <= 3.2 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://www.securityfocus.com/bid/102950Third Party Advisory, VDB Entry
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654bPatch, Third Party Advisory
- https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6cPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4249Third Party Advisory
- http://www.securityfocus.com/bid/102950Third Party Advisory, VDB Entry
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654bPatch, Third Party Advisory
- https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6cPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4249Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-6621?
The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.
How severe is CVE-2018-6621?
CVE-2018-6621 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.18% probability of exploitation in the next 30 days.
How do I fix CVE-2018-6621?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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