Out-of-Bounds Memory Access in mlxsw: thermal
Summary
GSD-2021-1001903: mlxsw: thermal: Fix out-of-bounds memory accesses. Affects Kernel versions >= a50c1e35650b929500bd89be61c89d95a267ce56, < df8e58716afb3bee2b59de66b1ba1033f2e26303. No fix is published. 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 mlxsw: thermal vulnerability affects the Linux Kernel package. The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. The mlxsw: thermal module is a thermal management driver for Mellanox Spectrum switches. It monitors the temperature of the switch and takes appropriate actions to prevent overheating. However, due to a programming error, the module is susceptible to out-of-bounds memory accesses.
Vulnerability Detail
The mlxsw: thermal vulnerability arises from out-of-bounds memory accesses in the module's code. This can be exploited by an attacker to read or modify memory outside the intended boundaries, potentially leading to information disclosure or system instability. The vulnerability was introduced in version v4.10 of the Linux Kernel and has been fixed in version v5.14.14. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
The mlxsw: thermal vulnerability in the Linux Kernel package can be mitigated by updating to version v5.14.14 or later. It is important to regularly update the Linux Kernel to ensure the latest security patches are applied. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The mlxsw: thermal module is a thermal management driver for Mellanox Spectrum switches. It monitors the temperature of the switch and takes appropriate actions to prevent overheating.
An out-of-bounds memory access occurs when a program reads from or writes to memory locations outside the allocated boundaries of a buffer or array. This can lead to memory corruption and potentially be exploited by attackers.
The mlxsw: thermal vulnerability can be exploited by an attacker to read or modify memory outside the intended boundaries. This could potentially lead to the disclosure of sensitive information or system instability.
No, the impact and attack plausibility of this vulnerability have not been proven yet. Further analysis and testing are required to assess the potential consequences.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
