9.8
CRITICAL
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 :

Nov. 21, 2024, 6:16 a.m.

Source :

cve@mitre.org

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.

Affected Products

The following products are affected by CVE-2021-38171 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Ffmpeg ffmpeg

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

Updated: 3 years, 6 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 24, 2021, 8:53 a.m. This repo has been linked 4 different CVEs too.

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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6
    Added Reference https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html
    Added Reference https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19%40AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/
    Added Reference https://security.gentoo.org/glsa/202312-14
    Added Reference https://www.debian.org/security/2021/dsa-4990
    Added Reference https://www.debian.org/security/2021/dsa-4998
  • CVE Modified by cve@mitre.org

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by cve@mitre.org

    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 cve@mitre.org

    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 nvd@nist.gov

    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 cve@mitre.org

    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 cve@mitre.org

    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 nvd@nist.gov

    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 cve@mitre.org

    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 cve@mitre.org

    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 nvd@nist.gov

    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:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
10010090908080707060605050404030302020101000March 7, 2023March 7, 2023March 14, 2023March 14, 2023March 29, 2023March 29, 2023April 12, 2023April 12, 2023Nov. 8, 2023Nov. 8, 2023Nov. 13, 2023Nov. 13, 2023Dec. 24, 2023Dec. 24, 2023March 1, 2024March 1, 2024March 27, 2024March 27, 2024May 6, 2024May 6, 2024Sept. 7, 2024Sept. 7, 2024Dec. 17, 2024Dec. 17, 2024March 17, 2025March 17, 2025March 29, 2025March 29, 2025March 30, 2025March 30, 2025
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.

0.22 }} -0.53%

score

0.41893

percentile

CVSS31 - Vulnerability Scoring System
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