Vulnerability in vsock package: Removal from connected table interrupted by signal
Summary
GSD-2022-1000545: vsock: remove vsock from connected table when connect is interrupted by a signal. Affects Kernel versions >= d021c344051af91f42c5ba9fdedc176740cbd238, < addd62a8cb6fa90aa322365c62487da61f6baab8. No fix is published. How to fix ↓
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Background
The vsock package is a component of the Linux Kernel, which provides support for virtual socket communication between virtual machines and the host system. It allows efficient and secure communication between these entities. However, a vulnerability has been identified in the vsock package, where a vsock connection is not properly removed from the connected table when the connect operation is interrupted by a signal.
Vulnerability Detail
When a connect operation in the vsock package is interrupted by a signal, the vsock connection remains in the connected table, leading to potential resource leaks and incorrect behavior. This vulnerability could be exploited by an attacker to cause denial of service or potentially gain unauthorized access to sensitive information. The vulnerability was introduced in version v3.9 of the Linux Kernel and has been fixed in version v5.16.11.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, the vsock package in the Linux Kernel is vulnerable to a flaw where a vsock connection is not properly removed from the connected table when the connect operation is interrupted by a signal. This vulnerability can lead to resource leaks and incorrect behavior, potentially resulting in denial of service or unauthorized access. It is crucial to update the Linux Kernel to version v5.16.11 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability in the vsock package could potentially lead to resource leaks and incorrect behavior, which may result in denial of service or unauthorized access to sensitive information.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the recommended fix to ensure the security of your system.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version to mitigate the vulnerability.
You can find more information about this vulnerability in the official GitHub repository of the Cloud Security Alliance's GSD Database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000545.json
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