Buffer Overflow Vulnerability in libvpx: Remote Code Execution Risk
Summary
DEBIAN-CVE-2015-4506: Buffer overflow in the vp9_init_context_buffers function in libvpx, as used in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3, allows remote attackers to execute arbitrary code via a crafted VP9 file. Affects libvpx versions < 1.4.0-4. Fixed in 1.4.0-4. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
libvpx is an open-source video codec library developed by Google, primarily used for encoding and decoding VP8 and VP9 video formats. It is widely integrated into various applications, including web browsers like Mozilla Firefox. The library is designed to provide high-quality video compression, making it essential for streaming and video playback. However, certain versions of libvpx are susceptible to a buffer overflow vulnerability that can be exploited by attackers.
Vulnerability Detail
The vulnerability, identified as DEBIAN-CVE-2015-4506, originates from a buffer overflow in the vp9_init_context_buffers function within libvpx. This flaw allows remote attackers to execute arbitrary code by crafting a malicious VP9 file. The vulnerability affects multiple Debian versions and can lead to severe consequences, including unauthorized access and control over the affected system.
How To Fix
Minimum fixed version
1.4.0-4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libvpxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid opening untrusted VP9 files or disable VP9 playback in applications that utilize libvpx until the package is updated.
Conclusion
The buffer overflow vulnerability in libvpx poses a significant risk, allowing remote code execution through crafted VP9 files. It is crucial for users to update to the patched version 1.4.0-4 to mitigate this risk. Additionally, utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
See every vulnerability recorded for libvpx →
FAQ
libvpx is an open-source library for encoding and decoding VP8 and VP9 video formats, widely used in video streaming applications.
The buffer overflow vulnerability allows attackers to execute arbitrary code by exploiting a flaw in the vp9_init_context_buffers function when processing crafted VP9 files.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.
Failing to address this vulnerability can lead to unauthorized access, data breaches, and potential control over the affected system by malicious actors.
Yes, as a temporary measure, avoid opening untrusted VP9 files or disable VP9 playback in applications that use libvpx.
References
Related vulnerabilities
Recent vulnerabilities recorded for libvpx.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
