Vulnerability Description
libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | < 5.1.2 |
Related Weaknesses (CWE)
References
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff00Mailing ListPatch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://news.ycombinator.com/item?id=35356201ExploitIssue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202312-14
- https://wrv.github.io/h26forge.pdfTechnical Description
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff00Mailing ListPatch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://news.ycombinator.com/item?id=35356201ExploitIssue TrackingThird Party Advisory
- https://security.gentoo.org/glsa/202312-14
- https://wrv.github.io/h26forge.pdfTechnical Description
FAQ
What is CVE-2022-48434?
CVE-2022-48434 is a vulnerability with a CVSS score of 8.1 (HIGH). libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbit...
How severe is CVE-2022-48434?
CVE-2022-48434 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-48434?
Check the references section above for vendor advisories and patch information. Affected products include: Ffmpeg Ffmpeg.