Out-of-Bounds Memory Access in mlxsw Thermal Module in Linux Kernel
Summary
UVI-2021-1001853: mlxsw: thermal: Fix out-of-bounds memory accesses. Affects Kernel versions >= a50c1e35650b929500bd89be61c89d95a267ce56, < e59d839743b50cb1d3f42a786bea48cc5621d254. No fix is published. How to fix ↓
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Background
The mlxsw thermal module is a component of the Linux Kernel that handles thermal management for Mellanox SwitchX-2 devices. It is responsible for monitoring and controlling the temperature of the switch. The vulnerability in the mlxsw thermal module allows for out-of-bounds memory accesses, which can lead to various security issues.
Vulnerability Detail
The vulnerability in the mlxsw thermal module arises from a lack of proper boundary checks when accessing memory. An attacker can exploit this vulnerability by sending specially crafted input to the affected system, potentially leading to memory corruption, privilege escalation, or denial of service. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to prevent potential security risks.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to update the Linux Kernel to the fixed version.
Conclusion
The vulnerability in the mlxsw thermal module of the Linux Kernel can lead to out-of-bounds memory accesses, potentially resulting in memory corruption, privilege escalation, or denial of service. It is crucial to update the Kernel to version v5.10.75 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The mlxsw thermal module is a component of the Linux Kernel that handles thermal management for Mellanox SwitchX-2 devices. It monitors and controls the temperature of the switch.
The impact of this vulnerability can vary depending on the attacker's capabilities and the system's configuration. It could potentially lead to memory corruption, privilege escalation, or denial of service.
An attacker can exploit this vulnerability by sending specially crafted input to the affected system, taking advantage of the lack of proper boundary checks in the mlxsw thermal module.
No, the impact and attack plausibility of this vulnerability have not been proven yet. However, it is still important to address it to mitigate potential security risks.
To fix this vulnerability, update the Linux Kernel to version v5.10.75 or later, which includes the necessary patch for the mlxsw thermal module.
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