Vulnerability in Kernel package: Potential Leak in nfp_tunnel_add_shared_mac()
Summary
GSD-2022-1000859: nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac(). Affects Kernel versions >= 20cce88650981ec504d328dbbdd004d991eb8535, < af4bc921d39dffdb83076e0a7eed1321242b7d87. 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 nfp_tunnel_add_shared_mac() function is a part of the Kernel's flower module, which handles network flow processing. This vulnerability specifically affects the nfp_tunnel_add_shared_mac() function within the flower module.
Vulnerability Detail
The nfp_tunnel_add_shared_mac() function in the Kernel's flower module has a potential memory leak. This vulnerability could allow an attacker to exhaust system resources by repeatedly invoking the function, leading to a denial of service (DoS) condition. The memory leak occurs when the function fails to release allocated memory in certain error scenarios. Although the impact and attack plausibility have not been proven, it is essential to address this vulnerability to ensure system stability and prevent potential resource exhaustion attacks.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The vulnerability in the Kernel's nfp_tunnel_add_shared_mac() function poses a potential risk of resource exhaustion attacks. To mitigate this risk, it is crucial to update the Linux Kernel to version v5.10.103 or later. This update includes the necessary fix to address the memory leak issue. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability could potentially lead to a denial of service (DoS) condition by exhausting system resources.
An attacker could exploit this vulnerability by repeatedly invoking the nfp_tunnel_add_shared_mac() function, causing a memory leak and potentially exhausting system resources.
There is no evidence of this vulnerability being exploited in the wild at the time of this report.
This vulnerability was introduced in version v5.1 of the Linux Kernel. Versions prior to v5.1 are not affected.
Yes, the vulnerability can be fixed by updating the Linux Kernel to version v5.10.103 or later.
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