CVE-2021-38171
FFmpeg ADTS Codec Denial of Service Jennings<|reserved_special_token_116|><|start_header_id|>assistant<|end_header_id|> Apache FFmpeg ADTS Decoder Logic Error
Description
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.
INFO
Published Date :
Aug. 21, 2021, 5:15 p.m.
Last Modified :
Dec. 23, 2023, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-38171 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-38171.
| URL | Resource |
|---|---|
| https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html | Mailing List Third Party Advisory |
| https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19%40AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/ | |
| https://security.gentoo.org/glsa/202312-14 | |
| https://www.debian.org/security/2021/dsa-4990 | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4998 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-38171 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-38171 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 23, 2023
Action Type Old Value New Value Added Reference MITRE https://security.gentoo.org/glsa/202312-14 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19%40AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/ [No types assigned] Removed Reference MITRE https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19@AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/ -
Modified Analysis by [email protected]
Nov. 30, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4998 No Types Assigned https://www.debian.org/security/2021/dsa-4998 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 14, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4998 [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 10, 2021
Action Type Old Value New Value Removed Reference https://www.debian.org/security/2021/dsa-4998 [Third Party Advisory] -
Modified Analysis by [email protected]
Nov. 05, 2021
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2021/dsa-4990 No Types Assigned https://www.debian.org/security/2021/dsa-4990 Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4998 No Types Assigned https://www.debian.org/security/2021/dsa-4998 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 01, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4998 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 20, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4990 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 30, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 No Types Assigned https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 Patch, Third Party Advisory Changed Reference Type https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19@AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/ No Types Assigned https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19@AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/ Patch, Third Party Advisory Added CWE NIST CWE-252 Added CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-38171 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-38171
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.28 }} 0.36%
score
0.85995
percentile