Out of Bounds Access Vulnerability in kyber
Summary
GSD-2021-1000406: kyber: fix out of bounds access when preempted. Affects Kernel versions >= a6088845c2bf754d6cb2572b484180680b037804, < 0b6b4b90b74c27bea968c214d820ba4254b903a5. No fix is published. How to fix ↓
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Background
The kyber package is a component of the Linux Kernel, which is responsible for managing I/O scheduling. It provides a framework for implementing various I/O schedulers. The vulnerability in kyber arises from an out of bounds access issue when preempted. This vulnerability can potentially be exploited by an attacker to gain unauthorized access or execute arbitrary code.
Vulnerability Detail
The out of bounds access vulnerability in kyber occurs when the scheduler is preempted. This can lead to a situation where the scheduler accesses memory outside of its allocated bounds, potentially resulting in a crash or arbitrary code execution. The vulnerability was introduced in version v4.18 of the Linux Kernel and has been fixed in version v5.4.120. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. Updating to the fixed version of the Linux Kernel is the recommended solution.
Conclusion
The out of bounds access vulnerability in kyber can be mitigated by updating the Linux Kernel to version v5.4.120 or later. It is important to stay up to date with security patches to ensure the integrity and security of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Kyber is a component of the Linux Kernel responsible for I/O scheduling.
The impact of this vulnerability is not yet proven, but it could potentially lead to unauthorized access or arbitrary code execution.
To fix this vulnerability, update the Linux Kernel to version v5.4.120 or later.
No, there is no specific workaround available for this vulnerability.
The updated Linux Kernel can be obtained from the official Linux Kernel repository.
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