Vulnerability in powerpc/64s Kernel Memory Update on Radix
Summary
GSD-2021-1000453: powerpc/64s: Fix pte update for kernel memory on radix. Affects Kernel versions >= f1cb8f9beba8699dd1b4518418191499e53f7b17, < b3d5d0983388d6c4fb35f7d722556d5595f167a7. No fix is published. How to fix ↓
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Background
The powerpc/64s package is a component of the Linux Kernel ecosystem. It provides support for the PowerPC architecture in 64-bit systems. The package is responsible for managing memory and executing instructions on PowerPC-based machines. However, a vulnerability has been discovered in the package's pte update mechanism for kernel memory on radix. This vulnerability could potentially be exploited by attackers to gain unauthorized access to sensitive kernel memory data.
Vulnerability Detail
The vulnerability in powerpc/64s arises from a flaw in the pte update process for kernel memory on radix. The issue was introduced in version v4.18 of the Linux Kernel by commit f1cb8f9beba8699dd1b4518418191499e53f7b17. It was fixed in version v4.19.191 by commit b3d5d0983388d6c4fb35f7d722556d5595f167a7. The vulnerability allows attackers to potentially manipulate kernel memory, leading to unauthorized access or privilege escalation. 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 powerpc/64s package in the Linux Kernel is vulnerable to a flaw in the pte update process for kernel memory on radix. This vulnerability can potentially allow attackers to manipulate kernel memory and gain unauthorized access or escalate privileges. It is recommended to update the Linux Kernel to version v4.19.191 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
powerpc/64s is a component of the Linux Kernel ecosystem that provides support for the PowerPC architecture in 64-bit systems. It manages memory and executes instructions on PowerPC-based machines.
The vulnerability in powerpc/64s can potentially allow attackers to manipulate kernel memory, leading to unauthorized access or privilege escalation.
The vulnerability was introduced in version v4.18 of the Linux Kernel by commit f1cb8f9beba8699dd1b4518418191499e53f7b17.
To fix this vulnerability, update the Linux Kernel to version v4.19.191 or later by pulling the latest source code from the official repository and compiling it for your system.
No specific workaround has been mentioned for this vulnerability.
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