CVE-2021-38171
Gentoo Linux Security Advisory 202312-14
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
La función adts_decode_extradata en el archivo libavformat/adtsenc.c en Ffmpeg versión 4.4, no comprueba el valor de retorno de init_get_bits, que es un paso necesario porque el segundo argumento de init_get_bits puede ser diseñado.
It was discovered that FFmpeg would attempt to divide by zero when using Linear Predictive Coding or AAC codecs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. It was discovered that FFmpeg incorrectly handled certain input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-08-07 CVE Reserved
- 2021-08-21 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-252: Unchecked Return Value
CAPEC
References (6)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 | 2023-12-23 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202312-14 | 2023-12-23 | |
| https://www.debian.org/security/2021/dsa-4990 | 2023-12-23 | |
| https://www.debian.org/security/2021/dsa-4998 | 2023-12-23 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ffmpeg Search vendor "Ffmpeg" | Ffmpeg Search vendor "Ffmpeg" for product "Ffmpeg" | 4.4 Search vendor "Ffmpeg" for product "Ffmpeg" and version "4.4" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
| ||||||