8.8
HIGH
CVE-2021-30123
FFmpeg Buffer Overflow Vulnerability
Description

FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.

INFO

Published Date :

April 7, 2021, 8:15 p.m.

Last Modified :

Nov. 7, 2023, 3:32 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-30123 has a 3 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-2021-30123 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 Ffmpeg ffmpeg
: Total Affected Vendor : 1 | Products : 1
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-2021-30123.

URL Resource
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f
https://security.gentoo.org/glsa/202105-24 Third Party Advisory
https://trac.ffmpeg.org/ticket/8845 Exploit Vendor Advisory
https://trac.ffmpeg.org/ticket/8863 Exploit Vendor 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).

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vin01/bogus-cves

Got a bogus CVE someone got for a non-vuln? Please share here!

Updated: 3 months, 4 weeks ago
25 stars 0 fork 0 watcher
Born at : Sept. 7, 2023, 7:45 p.m. This repo has been linked 36 different CVEs too.
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liyansong2018/CVE

Some Awesome and Simple CVE

C

Updated: 1 year ago
10 stars 2 fork 2 watcher
Born at : April 9, 2021, 1:57 p.m. This repo has been linked 23 different CVEs too.
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n0-traces/cve_monitor

Automatic monitor github cve using Github Actions

Python

Updated: 2 months ago
1 stars 56 fork 56 watcher
Born at : April 7, 2021, 11:16 a.m. This repo has been linked 1007 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-2021-30123 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-30123 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]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f [No types assigned]
    Removed Reference MITRE http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d6f293353c94c7ce200f6e0975ae3de49787f91f
  • Reanalysis by [email protected]

    Sep. 29, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* versions up to (excluding) 4.4 OR *cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*
  • Modified Analysis by [email protected]

    Jun. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202105-24 No Types Assigned https://security.gentoo.org/glsa/202105-24 Third Party Advisory
  • CVE Modified by [email protected]

    May. 26, 2021

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202105-24 [No Types Assigned]
  • Reanalysis by [email protected]

    May. 10, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* versions up to (including) 4.3 OR *cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* versions up to (excluding) 4.4
  • Initial Analysis by [email protected]

    Apr. 13, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d6f293353c94c7ce200f6e0975ae3de49787f91f No Types Assigned http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d6f293353c94c7ce200f6e0975ae3de49787f91f Patch, Third Party Advisory
    Changed Reference Type https://trac.ffmpeg.org/ticket/8845 No Types Assigned https://trac.ffmpeg.org/ticket/8845 Exploit, Vendor Advisory
    Changed Reference Type https://trac.ffmpeg.org/ticket/8863 No Types Assigned https://trac.ffmpeg.org/ticket/8863 Exploit, Vendor Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* versions up to (including) 4.3
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-30123 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-2021-30123 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

2.19 }} 0.13%

score

0.89589

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: