CVE-2021-30123: Buffer Overflow
First published: Wed Apr 07 2021(Updated: )
FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FFmpeg | =4.4 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d6f293353c94c7ce200f6e0975ae3de49787f91f
- https://security.gentoo.org/glsa/202105-24
- https://trac.ffmpeg.org/ticket/8845
- https://trac.ffmpeg.org/ticket/8863
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f
Frequently Asked Questions
What is the severity of CVE-2021-30123?
CVE-2021-30123 is classified as a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-30123?
To fix CVE-2021-30123, upgrade to FFmpeg version 4.4 or later.
What causes the vulnerability in CVE-2021-30123?
CVE-2021-30123 is caused by a buffer overflow in libavcodec when handling a crafted file.
Can CVE-2021-30123 be exploited remotely?
Yes, CVE-2021-30123 can be exploited remotely through maliciously crafted video files.
Is there a workaround for CVE-2021-30123?
There is no known effective workaround for CVE-2021-30123, and updating to a patched version is recommended.
- agent/type
- agent/severity
- agent/remedy
- agent/author
- agent/weakness
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/ffmpeg
- canonical/ffmpeg
- version/ffmpeg/4.4