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CVE-2019-9721

Status Candidate

Overview

A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.

Related Files

Ubuntu Security Notice USN-3967-1
Posted May 6, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3967-1 - It was discovered that FFmpeg contained multiple security issues when handling certain multimedia files. If a user were tricked into opening a crafted multimedia file, an attacker could cause a denial of service via application crash.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-15822, CVE-2019-9721
SHA-256 | a4664648350146cf5f50d26dcf6ba5a6650a1f5bcce85926d6c7aa0c0d563038
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