CVE-2020-13904
Publication date 7 June 2020
Last updated 25 August 2025
Ubuntu priority
Description
FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| ffmpeg | 20.04 LTS focal |
Fixed 7:4.2.4-1ubuntu0.1
|
| 18.04 LTS bionic |
Fixed 7:3.4.8-0ubuntu0.2
|
|
| 16.04 LTS xenial |
Fixed 7:2.8.17-0ubuntu0.1
|
|
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-4431-1
- FFmpeg vulnerabilities
- 22 July 2020