ffmpeg: cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG...
CVE-2020-12284 is fixed in 14 products on 1 platform, first by ffmpeg 7:4.2.4-1ubuntu0.1, released June 2, 2021. It is not reported as exploited. Patch Radar priority: Routine.
cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | ffmpeg 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavcodec-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavcodec-extra 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavcodec-extra58 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavcodec-extra58 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavcodec58 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavcodec58 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavdevice58 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavdevice58 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavfilter-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavfilter-extra 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavfilter-extra7 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavfilter-extra7 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavfilter7 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavfilter7 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavformat58 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavformat58 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavresample4 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavresample4 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libavutil56 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libavutil56 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libpostproc55 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libpostproc55 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libswresample3 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libswresample3 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
| libswscale5 · Ubuntu 20.04 LTS (focal) | 7:4.2.4-1ubuntu0.1 | libswscale5 7:4.2.4-1ubuntu0.1 | Jun 2, 2021 |
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