The update_dimensions function in libavcodec/vp8.c in FFmpeg through 2.8.1, as used in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The update_dimensions function in libavcodec/vp8.c in FFmpeg through 2.8.1, as used in Google Chrome before 46.0.2490.71 and other products, relies on a coefficient-partition count during multi-threaded operation, which allows remote attackers to cause a denial of service (race condition and memory corruption) or possibly have unspecified other impact via a crafted WebM file.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2015:1912 Released 2015-10-15 · Red Hat rating Importantchromium-browser security update
- Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-46.0.2490.71-1.el6
- Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-46.0.2490.71-1.el6
- Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-46.0.2490.71-1.el6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop Supplementary (v. 6) | Fixed | RHSA-2015:1912 |
| Red Hat Enterprise Linux Server Supplementary (v. 6) | Fixed | RHSA-2015:1912 |
| Red Hat Enterprise Linux Workstation Supplementary (v. 6) | Fixed | RHSA-2015:1912 |
Timeline
- 2026-10-02 Threatist record created from CVE-2015-6761
- 2026-10-03 Alias added: GHSA-w82p-vxv4-pvcf
References
Other 6
- http://googlechromereleases.blogspot.com/2015/10/stable-channel-update.html
- [debian-lts-announce] 20181220 [SECURITY] [DLA 1611-1] libav security update
- https://codereview.chromium.org/1376913003
- https://code.google.com/p/chromium/issues/detail?id=532967
- https://code.google.com/p/chromium/issues/detail?id=447860
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=dabea74d0e82ea80cd344f630497cafcb3ef872c
Sources
- CVE-2015-6761 · CVE Program
- CVE-2015-6761 · NVD
- FIRST EPSS
- GHSA-w82p-vxv4-pvcf · GitHub Advisory Database · CC BY 4.0
- CVE-2015-6761 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences