| Package | Affected versions | Patched versions |
|---|---|---|
| ffmpeg | ≤ 2.8.1 | |
| chrome | ≤ 45.0.2454.101 |
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.
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