Buffer Overflow Vulnerability in Ffmpeg: A Threat to System Integrity
Summary
DEBIAN-CVE-2023-51797: Buffer Overflow vulnerability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavfilter/avf_showwaves.c:722:24 in showwaves_filter_frame. Affects ffmpeg versions < 7:7.0.1-3. Fixed in 7:7.0.1-3. How to fix ↓
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Background
Ffmpeg is a widely used open-source multimedia framework that enables users to record, convert, and stream audio and video. It supports a vast array of codecs and formats, making it a critical component for media processing applications. However, the software is not immune to vulnerabilities, such as the recently identified buffer overflow issue, which poses significant risks to system security.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2023-51797 is a buffer overflow in Ffmpeg, specifically located in the showwaves_filter_frame function within the libavfilter/avf_showwaves.c file. This flaw allows a local attacker to execute arbitrary code, potentially leading to unauthorized access and control over the affected system. The vulnerability was introduced in version 0 and remains unaddressed in earlier releases, making it crucial for users to update to the fixed version to mitigate risks.
How To Fix
Minimum fixed version
7:7.0.1-3
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ffmpegTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users are advised to restrict access to the Ffmpeg application or limit its execution to trusted users only. This can help mitigate the risk of exploitation until the package is updated.
Conclusion
The buffer overflow vulnerability in Ffmpeg poses a significant risk to users, allowing potential attackers to execute arbitrary code. It is essential to update to the patched version 7:7.0.1-3 to safeguard your system. Additionally, utilizing tools like Vulert can help monitor for vulnerabilities in your applications effectively.
See every vulnerability recorded for ffmpeg →
FAQ
A buffer overflow occurs when a program writes more data to a buffer than it can hold, potentially allowing attackers to overwrite adjacent memory and execute arbitrary code.
You can use Vulert, which monitors open-source vulnerabilities in your software. By uploading a manifest file like package-lock.json to the Vulert playground, you can check for vulnerabilities without needing to install any software.
If exploited, this vulnerability could allow an attacker to execute arbitrary code on the affected system, leading to unauthorized access, data breaches, or system compromise.
Yes, users should update to Ffmpeg version 7:7.0.1-3 or later, which contains the necessary patches to address this vulnerability.
If immediate updates are not possible, consider restricting access to the Ffmpeg application and monitoring for any suspicious activity on your system.
References
Related vulnerabilities
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