Invalid Decoder VSI Handling Vulnerability in Linux Kernel (CVE-2024-43831)
Summary
CVE-2024-43831: In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Handle invalid decoder vsi Handle an invalid decoder vsi in vpu_dec_init to ensure the decoder vsi is valid for future use. Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is a core component of many operating systems, providing essential services for hardware management, process control, and system security. It is widely used in various distributions, including Debian. The kernel's media subsystem, particularly the MediaTek video codec, is responsible for handling video decoding tasks. This vulnerability arises from improper handling of an invalid decoder VSI (Video Stream Interface), which can lead to potential system instability or security risks.
Vulnerability Detail
CVE-2024-43831 is a vulnerability in the Linux kernel related to the MediaTek video codec. The issue originates from the vpu_dec_init function, which fails to validate the decoder VSI before use. This oversight can lead to undefined behavior, potentially allowing an attacker to exploit the vulnerability to cause system crashes or execute arbitrary code. The vulnerability affects multiple Debian versions, including Debian 11, 12, and 13, with a specific fix introduced in version 6.10.3-1 for Debian 13.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the recommended updates as soon as they are available.
Conclusion
CVE-2024-43831 is a critical vulnerability in the Linux kernel affecting the MediaTek video codec. It is essential for users to update their systems to mitigate the risks associated with this vulnerability. Regular monitoring and timely updates are crucial for maintaining system security.
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FAQ
CVE-2024-43831 is a vulnerability in the Linux kernel that affects the MediaTek video codec, specifically related to the handling of an invalid decoder VSI.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. By uploading your manifest file, you can check if your application is affected by CVE-2024-43831.
The vulnerability can lead to system instability, crashes, or even allow attackers to execute arbitrary code, posing significant security risks.
Debian 11, 12, and 13 are affected by this vulnerability, with a specific fix available for Debian 13 starting from version 6.10.3-1.
To apply the fix, update your Linux kernel using the commands provided in the 'how_to_fix' section and reboot your system.
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