Critical Off-by-One Vulnerability in Linux Kernel - Impacting Debian Packages
Summary
DEBIAN-CVE-2024-53162: In the Linux kernel, the following vulnerability has been resolved: crypto: qat/qat_4xxx - fix off by one in uof_get_name() The fw_objs[] array has "num_objs" elements so the > needs to be >= to prevent an out of bounds... Affects linux versions < 6.12.3-1. Fixed in 6.12.3-1. 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 kernel is the core component of the Debian operating system, responsible for managing hardware resources and providing essential services to applications. It is a critical piece of software that ensures system stability and performance. The kernel is continuously updated to address security vulnerabilities and improve functionality. This specific vulnerability affects the crypto subsystem, particularly the qat driver, which is used for hardware acceleration of cryptographic operations.
Vulnerability Detail
In the Linux kernel, an off-by-one vulnerability has been identified in the function uof_get_name() within the qat driver. This flaw arises from improper bounds checking on the fw_objs[] array, which can lead to an out-of-bounds read. If exploited, this vulnerability could allow an attacker to read sensitive memory locations, potentially leading to information disclosure or system instability. The issue is particularly concerning as it affects the integrity of cryptographic operations, which are vital for secure communications.
How To Fix
Minimum fixed version
6.12.3-1
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, no specific workarounds are provided for this vulnerability. It is recommended to apply the patch as soon as it becomes available.
Conclusion
The off-by-one vulnerability in the Linux kernel's qat driver poses a significant risk to Debian users. It is essential to update to the patched version 6.12.3-1 to safeguard your system. Regular monitoring for vulnerabilities using tools like Vulert can help maintain system security.
See every vulnerability recorded for linux →
FAQ
The vulnerability is an off-by-one error in the Linux kernel's qat driver, which can lead to out-of-bounds memory access.
Exploitation of this vulnerability could allow attackers to read sensitive information from memory, potentially compromising system security.
If you are using Debian 13 or 14 with the vulnerable kernel version, your system is at risk. Check your kernel version using 'uname -r'.
While no specific workarounds are available, it is crucial to prioritize updating your kernel to mitigate the risk.
You can use Vulert, which monitors open-source vulnerabilities in your software using a manifest file. Check your application against vulnerabilities without needing to install anything.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.
