Vulnerability in Kernel package: gcc-plugins/stackleak
Summary
GSD-2022-1002224: gcc-plugins/stackleak: Exactly match strings instead of prefixes. Affects Kernel versions < f36dd10d1b9533129c86bc9b4f707fda1abfee06. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The gcc-plugins/stackleak vulnerability affects the Kernel package, specifically the stackleak plugin in the GCC compiler. This plugin is designed to detect and prevent stack-based buffer overflows by adding runtime checks to the generated code.
Vulnerability Detail
The gcc-plugins/stackleak vulnerability arises from an issue in the matching mechanism used by the plugin. Instead of exactly matching strings, it only matches prefixes. This flaw could potentially allow an attacker to bypass the stackleak protection and exploit stack-based buffer overflows. The impact and attack plausibility of this vulnerability have not been proven yet. However, it is crucial to address this issue to ensure the integrity and security of the Kernel package.
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 gcc-plugins/stackleak vulnerability in the Kernel package poses a potential risk of stack-based buffer overflows. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v5.4.189 or later. This update includes a fix for the vulnerability, ensuring that the stackleak plugin correctly matches strings. For further assistance or support in addressing this vulnerability, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, if successfully exploited, it could lead to stack-based buffer overflows, potentially allowing an attacker to execute arbitrary code or gain elevated privileges.
You can use the Vulert playground at Vulert Scanner to check if your system is affected by the gcc-plugins/stackleak vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it in real-time to identify any open-source vulnerabilities, including this one.
No known exploit for the gcc-plugins/stackleak vulnerability has been reported at this time. However, it is essential to apply the recommended fix to mitigate any potential risks.
The vulnerability is present in versions of the Kernel package prior to v5.4.189. Therefore, it is recommended to update to this version or later to address the issue.
You can find more information about the gcc-plugins/stackleak vulnerability in the Linux Kernel's Git repository at https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/. Additionally, the vulnerability details are available in the GSD-2022-1002224.json file of the GSD database, which can be accessed at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002224.json.
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