libavresample3: In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted vide...
CVE-2019-9718 is fixed in 14 products on 1 platform, first by ffmpeg 7:3.4.6-0ubuntu0.18.04.1, released April 17, 2019. It is not reported as exploited. Patch Radar priority: Routine.
In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | ffmpeg 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavcodec-extra · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavcodec-extra 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavcodec-extra57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavcodec-extra57 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavcodec57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavcodec57 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavdevice57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavdevice57 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavfilter-extra · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavfilter-extra 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavfilter-extra6 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavfilter-extra6 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavfilter6 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavfilter6 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavformat57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavformat57 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavresample3 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavresample3 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libavutil55 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libavutil55 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libpostproc54 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libpostproc54 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libswresample2 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libswresample2 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
| libswscale4 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.6-0ubuntu0.18.04.1 | libswscale4 7:3.4.6-0ubuntu0.18.04.1 | Apr 17, 2019 |
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