Vulnerability in Kernel: net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list
Summary
GSD-2022-1003522: net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list. Affects Kernel versions >= 14fceff4771e51b23b4485b575cf9e5b3414b89b, < c2ae49a113a5344232f1ebb93bcf18bbd11e9c39. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and acts as an interface between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the overall stability and security of the system. The lantiq_gswip module within the Kernel is responsible for handling network traffic and managing Ethernet switches. However, a vulnerability has been discovered in the gswip_gphy_fw_list function of the lantiq_gswip module, which can lead to a refcount leak.
Vulnerability Detail
The vulnerability in the gswip_gphy_fw_list function of the lantiq_gswip module allows for a refcount leak. This can result in a resource leak, potentially leading to memory corruption or exhaustion. An attacker could exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability was introduced in version v4.20 of the Linux Kernel and has been fixed in version v5.10.122.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.122 or later. This can be done by downloading the latest stable version of the Kernel from the official Git repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and following the installation instructions provided by the Kernel developers.
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Workaround
No workaround has been provided for this vulnerability. It is necessary to update the Kernel to the fixed version.
Conclusion
The vulnerability in the lantiq_gswip module of the Kernel can lead to a refcount leak, potentially resulting in memory corruption or exhaustion. It is crucial to update the Linux Kernel to version v5.10.122 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
This vulnerability can potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, no known exploits have been reported for this vulnerability. However, it is important to apply the necessary updates to mitigate the risk.
Yes, this vulnerability can be exploited remotely if the affected system is accessible over the network.
For more details about this vulnerability, you can refer to the source information provided by the Cloud Security Alliance's GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003522.json).
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