========================================================================== Ubuntu Security Notice USN-6449-2 November 15, 2023
ffmpeg regression ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS (Available with Ubuntu Pro) - Ubuntu 20.04 LTS (Available with Ubuntu Pro) - Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: USN-6449-1 introduced a regression in FFmpeg Software Description: - ffmpeg: Tools for transcoding, streaming and playing of multimedia files Details: USN-6449-1 fixed vulnerabilities in FFmpeg. Unfortunately that update could introduce a regression in tools using an FFmpeg library, like VLC. This updated fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that FFmpeg incorrectly managed memory resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-22038) It was discovered that FFmpeg incorrectly handled certain input files, leading to an integer overflow. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-20898, CVE-2021-38090, CVE-2021-38091, CVE-2021-38092, CVE-2021-38093, CVE-2021-38094) It was discovered that FFmpeg incorrectly managed memory, resulting in a memory leak. If a user or automated system were tricked into processing a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2022-48434) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS (Available with Ubuntu Pro): ffmpeg 7:4.4.2-0ubuntu0.22.04.1+esm3 libavcodec-extra 7:4.4.2-0ubuntu0.22.04.1+esm3 libavcodec-extra58 7:4.4.2-0ubuntu0.22.04.1+esm3 libavcodec58 7:4.4.2-0ubuntu0.22.04.1+esm3 libavdevice58 7:4.4.2-0ubuntu0.22.04.1+esm3 libavfilter-extra 7:4.4.2-0ubuntu0.22.04.1+esm3 libavfilter-extra7 7:4.4.2-0ubuntu0.22.04.1+esm3 libavfilter7 7:4.4.2-0ubuntu0.22.04.1+esm3 libavformat-extra 7:4.4.2-0ubuntu0.22.04.1+esm3 libavformat-extra58 7:4.4.2-0ubuntu0.22.04.1+esm3 libavformat58 7:4.4.2-0ubuntu0.22.04.1+esm3 libavutil56 7:4.4.2-0ubuntu0.22.04.1+esm3 libpostproc55 7:4.4.2-0ubuntu0.22.04.1+esm3 libswresample3 7:4.4.2-0ubuntu0.22.04.1+esm3 libswscale5 7:4.4.2-0ubuntu0.22.04.1+esm3 Ubuntu 20.04 LTS (Available with Ubuntu Pro): ffmpeg 7:4.2.7-0ubuntu0.1+esm4 libavcodec-extra 7:4.2.7-0ubuntu0.1+esm4 libavcodec-extra58 7:4.2.7-0ubuntu0.1+esm4 libavcodec58 7:4.2.7-0ubuntu0.1+esm4 libavdevice58 7:4.2.7-0ubuntu0.1+esm4 libavfilter-extra 7:4.2.7-0ubuntu0.1+esm4 libavfilter-extra7 7:4.2.7-0ubuntu0.1+esm4 libavfilter7 7:4.2.7-0ubuntu0.1+esm4 libavformat58 7:4.2.7-0ubuntu0.1+esm4 libavresample4 7:4.2.7-0ubuntu0.1+esm4 libavutil-dev 7:4.2.7-0ubuntu0.1+esm4 libavutil56 7:4.2.7-0ubuntu0.1+esm4 libpostproc55 7:4.2.7-0ubuntu0.1+esm4 libswresample3 7:4.2.7-0ubuntu0.1+esm4 libswscale5 7:4.2.7-0ubuntu0.1+esm4 Ubuntu 18.04 LTS (Available with Ubuntu Pro): ffmpeg 7:3.4.11-0ubuntu0.1+esm4 libavcodec-extra 7:3.4.11-0ubuntu0.1+esm4 libavcodec-extra57 7:3.4.11-0ubuntu0.1+esm4 libavcodec57 7:3.4.11-0ubuntu0.1+esm4 libavdevice-dev 7:3.4.11-0ubuntu0.1+esm4 libavdevice57 7:3.4.11-0ubuntu0.1+esm4 libavfilter-dev 7:3.4.11-0ubuntu0.1+esm4 libavfilter-extra 7:3.4.11-0ubuntu0.1+esm4 libavfilter-extra6 7:3.4.11-0ubuntu0.1+esm4 libavfilter6 7:3.4.11-0ubuntu0.1+esm4 libavformat57 7:3.4.11-0ubuntu0.1+esm4 libavresample3 7:3.4.11-0ubuntu0.1+esm4 libavutil-dev 7:3.4.11-0ubuntu0.1+esm4 libavutil55 7:3.4.11-0ubuntu0.1+esm4 libpostproc54 7:3.4.11-0ubuntu0.1+esm4 libswresample2 7:3.4.11-0ubuntu0.1+esm4 libswscale4 7:3.4.11-0ubuntu0.1+esm4 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6449-2 https://ubuntu.com/security/notices/USN-6449-1 https://launchpad.net/bugs/2042743
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