Ubuntu Security Notice USN-6449-2

Ubuntu Security Notice 6449-2 - 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. 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.

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