Vulnerability in Kernel: hns_dsaf_misc
Summary
GSD-2021-1002441: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port(). Affects Kernel versions < 99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. The hns_dsaf_misc module in the Kernel is specifically related to the Ethernet functionality on Hisilicon platforms. It includes various functions for managing Ethernet ports and related operations. However, a vulnerability has been discovered in the hns_dsaf_ge_srst_by_port() function, which could lead to an array overflow.
Vulnerability Detail
The hns_dsaf_ge_srst_by_port() function in the hns_dsaf_misc module of the Kernel is susceptible to an array overflow. This vulnerability could potentially be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. The overflow occurs when processing certain Ethernet port-related operations, leading to memory corruption and potential system instability. It is important to note that 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. However, applying the recommended fix by updating the Kernel to the latest version should address the issue.
Conclusion
In conclusion, a vulnerability has been identified in the hns_dsaf_misc module of the Kernel, specifically in the hns_dsaf_ge_srst_by_port() function. This vulnerability could potentially lead to arbitrary code execution or a denial-of-service condition. It is crucial to update the Linux Kernel to version v5.4.164 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 this vulnerability could range from arbitrary code execution to a denial-of-service condition. However, the actual impact and attack plausibility have not been proven yet.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is still important to apply the recommended fix to mitigate any potential risks.
The specific prerequisites for exploiting this vulnerability are not mentioned in the available information. However, it is always advisable to keep systems up to date with the latest security patches to minimize the risk of exploitation.
The discovery of this vulnerability is credited to the Linux Kernel development team.
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