Kernel Panic Vulnerability in Linux Package: Critical Array Overflow Issue
Summary
DEBIAN-CVE-2023-52797: In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check find_first_bit() return value We must check the return value of find_first_bit() before using the return value as an index array si... Affects linux versions < 6.6.8-1. Fixed in 6.6.8-1. 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
Background
The Linux package is a core component of the Debian operating system, responsible for managing hardware, system resources, and providing essential services to applications. It is widely used across various environments, from servers to personal computers. This vulnerability arises from improper handling of the return value from the find_first_bit() function, which can lead to an array overflow, causing a kernel panic and system instability.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified where the return value of the find_first_bit() function is not adequately checked before being used as an index for an array. This oversight can lead to an overflow of the array, resulting in a kernel panic. The panic occurs when the system attempts to access an invalid memory location, causing a crash that halts all operations. The vulnerability is critical as it can be exploited to disrupt system functionality and lead to potential data loss.
How To Fix
Minimum fixed version
6.6.8-1
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 available for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
The identified vulnerability in the Linux package poses a significant risk due to its potential to cause kernel panics and system instability. Users are strongly advised to update to the patched version to mitigate this risk. Regular monitoring and prompt updates are essential for maintaining system security.
See every vulnerability recorded for linux →
FAQ
The vulnerability is an array overflow issue in the Linux kernel caused by not checking the return value of the find_first_bit() function.
Exploitation of this vulnerability can lead to a kernel panic, causing the system to crash and potentially resulting in data loss.
If you are using an affected version of the Linux package on Debian 13 or 14, your system may be at risk until the patch is applied.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
While there are no specific workarounds, it is crucial to monitor your system closely and apply the patch as soon as possible.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.
