Out-of-Bounds Memory Access in mlxsw: thermal
Summary
GSD-2021-1001853: mlxsw: thermal: Fix out-of-bounds memory accesses. Affects Kernel versions >= a50c1e35650b929500bd89be61c89d95a267ce56, < e59d839743b50cb1d3f42a786bea48cc5621d254. 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 Kernel package in the Linux ecosystem. The Kernel package is a critical component of the Linux operating system, responsible for managing core system functions and providing an interface between hardware and software. The mlxsw: thermal module within the Kernel package is specifically responsible for thermal management of Mellanox Switch devices. This vulnerability allows for out-of-bounds memory accesses, which can lead to various security issues and system instability.
Vulnerability Detail
The mlxsw: thermal vulnerability arises from out-of-bounds memory accesses. This occurs when the mlxsw: thermal module attempts to access memory beyond the boundaries of an allocated buffer. An attacker could exploit this vulnerability to read sensitive information from kernel memory or modify critical data structures, potentially leading to privilege escalation, denial of service, or other security compromises. The vulnerability was introduced in version v4.10 of the Linux Kernel and has been fixed in version v5.10.75.
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 Kernel package exposes systems to potential security risks and instability. It is crucial to update to the fixed version of the Linux Kernel (v5.10.75 or later) to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The mlxsw: thermal vulnerability can potentially lead to privilege escalation, denial of service, or other security compromises. It allows an attacker to read sensitive information from kernel memory or modify critical data structures.
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, using just a manifest file like package-lock.json.
Yes, the vulnerability has been fixed in version v5.10.75 of the Linux Kernel. It is recommended to update to this version or a later one to apply the patch.
The recommended approach is to update the Linux Kernel to the fixed version. However, if updating is not immediately feasible, it is advisable to follow general security best practices, such as restricting access to vulnerable systems, implementing network segmentation, and monitoring for any suspicious activities.
You can refer to the vulnerability details in the GSD database maintained by the Cloud Security Alliance. The specific vulnerability ID is GSD-2021-1001853, and the source can be found at: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001853.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
