Vulnerability in Kernel package: arm64 stackleak
Summary
GSD-2022-1003095: arm64: stackleak: fix current_top_of_stack(). Affects Kernel versions >= 0b3e336601b82c6afa0e9cf21db9cb8793e25399, < 4261a2e8b45de5d9a486f7402174c1816f884c11. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services such as process management, memory management, and device drivers. The arm64 stackleak vulnerability affects the Kernel package, specifically the arm64 architecture. This vulnerability could potentially be exploited by attackers to gain unauthorized access or execute arbitrary code on affected systems.
Vulnerability Detail
The arm64 stackleak vulnerability arises from a flaw in the current_top_of_stack() function within the Kernel package. This vulnerability was introduced in version v4.19 of the Linux Kernel by commit 0b3e336601b82c6afa0e9cf21db9cb8793e25399 and was fixed in version v5.17.14 by commit 4261a2e8b45de5d9a486f7402174c1816f884c11. The vulnerability allows an attacker to potentially bypass stack protection mechanisms, leading to stack-based memory corruption. 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
No specific workaround has been mentioned for this vulnerability.
Conclusion
The arm64 stackleak vulnerability in the Kernel package poses a potential security risk to affected systems. It is recommended to update the Linux Kernel to version v5.17.14 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of the arm64 stackleak vulnerability is not yet proven. However, if successfully exploited, it could allow an attacker to bypass stack protection mechanisms and potentially execute arbitrary code or gain unauthorized access to the affected system.
The arm64 stackleak vulnerability was introduced in version v4.19 of the Linux Kernel and is fixed in version v5.17.14.
At the time of this report, there is no known exploit for the arm64 stackleak vulnerability.
The recommended mitigation for the arm64 stackleak vulnerability is to update the Linux Kernel package to version v5.17.14 or later.
For more information about the arm64 stackleak vulnerability, you can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003095.json).
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