Command Ring Pointer Corruption Vulnerability in xhci
Summary
GSD-2021-1001863: xhci: Fix command ring pointer corruption while aborting a command. Affects Kernel versions < dec944bb7079b37968cf69c8a438f91f15c4cc61. No fix is published. How to fix ↓
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Background
The xhci package is a component of the Linux Kernel that provides support for USB 3.0 and later versions. It includes a host controller driver that manages USB devices connected to the system. The command ring is a data structure used by the xhci driver to issue commands to USB devices. This vulnerability in the xhci package allows for command ring pointer corruption when aborting a command, potentially leading to security issues.
Vulnerability Detail
The vulnerability arises when aborting a command in the xhci package. Due to a flaw in the code, the command ring pointer can become corrupted, leading to unpredictable behavior and potential security risks. An attacker may be able to exploit this vulnerability to execute arbitrary code, escalate privileges, or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet.
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.
Conclusion
The command ring pointer corruption vulnerability in the xhci package can lead to security risks and unpredictable behavior. It is recommended to update the Linux Kernel to version v5.10.75 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The xhci package is a component of the Linux Kernel that provides support for USB 3.0 and later versions. It includes a host controller driver that manages USB devices connected to the system.
The command ring is a data structure used by the xhci driver to issue commands to USB devices. It keeps track of the commands to be executed and their associated data.
The impact of this vulnerability is not yet proven. However, it could potentially allow an attacker to execute arbitrary code, escalate privileges, or cause a denial-of-service condition.
To fix this vulnerability, you should update your Linux Kernel to version v5.10.75 or later. Download the updated kernel source code from the official Linux Kernel repository and compile it according to the provided instructions.
No specific workaround is mentioned for this vulnerability.
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