tipc: Move bc link creation back to tipc_node_create
Summary
GSD-2022-1004603: tipc: move bc link creation back to tipc_node_create. Affects Kernel versions >= 4cbf8ac2fe5a0846508fe02b95a5de1a90fa73f4, < 456bc338871c4a52117dd5ef29cce3745456d248. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware and software components. The Transmission Control Protocol (TCP) over Internet Protocol (IP) Connections (TIPC) is a protocol within the Kernel package that enables communication between processes on different nodes in a cluster. TIPC uses a publish-subscribe model and supports both unicast and multicast communication. The vulnerability in question relates to the creation of broadcast (bc) links in the TIPC module.
Vulnerability Detail
The vulnerability arises from a code change that moved the creation of broadcast (bc) links from the tipc_node_create function to another location. This change introduced a potential security vulnerability. The impact and attack plausibility of this vulnerability have not been proven yet. However, if exploited, an attacker could potentially gain unauthorized access or disrupt communication between processes on different nodes in a TIPC cluster. The vulnerability was introduced in version v5.5 of the Linux Kernel and has been fixed in version v5.10.129.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, the vulnerability in the TIPC module of the Linux Kernel package could potentially allow unauthorized access or disruption of communication in a TIPC cluster. It is recommended to update the package to version v5.10.129 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
If exploited, this vulnerability could potentially allow an attacker to gain unauthorized access or disrupt communication between processes on different nodes in a TIPC cluster.
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 Vulert will analyze it for any open-source vulnerabilities, including this one.
There is no information available regarding active exploitation of this vulnerability at the time of this report.
The recommended mitigation is to update the Linux Kernel package to version v5.10.129 or later.
You can find more information about this vulnerability in the GSD-2022-1004603 JSON file available in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004603.json).
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