In FFmpeg 2.4 and 3.3.3, the read_data function in libavformat/hls.c does not restrict reload attempts for an insufficient list, which allows remote attackers to cause a denial of service (infinite loop).
http://www.debian.org/security/2017/dsa-3996
http://www.securityfocus.com/bid/100629
https://github.com/FFmpeg/FFmpeg/commit/7ba100d3e6e8b1e5d5342feb960a7f081d6e15af
https://github.com/FFmpeg/FFmpeg/commit/7ec414892ddcad88313848494b6fc5f437c9ca4a
https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html
Source: MITRE
Published: 2017-08-31
Updated: 2020-12-29
Type: CWE-835
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM