Critical Integer Underflow Vulnerability in Linux Kernel - CVE-2024-53081
Summary
CVE-2024-53081: In the Linux kernel, the following vulnerability has been resolved: media: ar0521: don't overflow when checking PLL values The PLL checks are comparing 64 bit integers with 32 bit ones, as reported by Coverity. Affects linux versions < 6.1.119-1. Fixed in 6.1.119-1. How to fix ↓
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Background
The Linux kernel is a core component of many operating systems, providing essential services for hardware and software interactions. It is known for its stability, performance, and security features. However, vulnerabilities can arise, affecting its reliability and security. CVE-2024-53081 is a specific vulnerability that affects the media subsystem, particularly the ar0521 driver, which is responsible for handling image sensors. This vulnerability could potentially lead to unexpected behavior in systems utilizing this driver.
Vulnerability Detail
CVE-2024-53081 is an integer underflow vulnerability found in the Linux kernel's media subsystem. The issue arises from the comparison of 64-bit integers with 32-bit integers when checking Phase-Locked Loop (PLL) values. This discrepancy can lead to underflow conditions, which may cause incorrect calculations and unexpected behavior in the driver. If exploited, this vulnerability could compromise the integrity of the system, leading to potential denial of service or other malicious activities.
How To Fix
Minimum fixed version
6.1.119-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch as soon as it becomes available.
Conclusion
CVE-2024-53081 is a significant vulnerability in the Linux kernel that requires immediate attention. Users are advised to update their systems to the latest kernel version to ensure protection against potential exploits. Monitoring tools like Vulert can assist in identifying vulnerabilities in your software without requiring code access.
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FAQ
CVE-2024-53081 is a vulnerability in the Linux kernel that involves an integer underflow in the media subsystem, specifically affecting the ar0521 driver.
This vulnerability could lead to unexpected behavior in systems using the affected driver, potentially compromising system integrity and security.
Yes, a patch is expected to be released. Users should update their Linux kernel to the latest version to mitigate this vulnerability.
You can use Vulert, which monitors open-source vulnerabilities in your software. By uploading your manifest file, you can check for vulnerabilities like CVE-2024-53081.
While there are no specific workarounds, it is crucial to monitor for updates and apply them as soon as possible to mitigate any risks associated with this vulnerability.
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