Locking Issues with Loops over idev->addr_list in ipv6
Summary
GSD-2022-1003156: ipv6: fix locking issues with loops over idev->addr_list. Affects Kernel versions < 3d972015dde5e50585c7e9b7fc9a403306f88b78. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system. It provides the core functionality and acts as a bridge between the hardware and software layers. The Kernel package includes various subsystems, including the IPv6 networking subsystem. IPv6 is the latest version of the Internet Protocol, designed to replace IPv4. It enables the identification and location of devices on networks and routes traffic across the internet. The idev->addr_list is a data structure within the IPv6 subsystem that stores a list of addresses associated with a network interface. This vulnerability affects the locking mechanism used in loops over idev->addr_list, potentially leading to security issues.
Vulnerability Detail
The vulnerability arises from locking issues in loops over idev->addr_list in the IPv6 subsystem. These locking issues can result in race conditions and inconsistent data access, leading to potential security vulnerabilities. Attackers may exploit these vulnerabilities to gain unauthorized access, execute arbitrary code, or cause denial-of-service conditions. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in Linux Kernel version v5.17.14 by commit 3d972015dde5e50585c7e9b7fc9a403306f88b78.
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.
Conclusion
In conclusion, the locking issues with loops over idev->addr_list in the IPv6 subsystem of the Kernel package can potentially lead to security vulnerabilities. It is crucial to update the Linux Kernel to version v5.17.14 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 is not yet proven. However, if exploited, it could lead to unauthorized access, code execution, or denial-of-service conditions.
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 to the playground, and it will provide real-time alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in Linux Kernel version v5.17.14 by commit 3d972015dde5e50585c7e9b7fc9a403306f88b78. It is recommended to update to this version or later to mitigate the vulnerability.
There are no known exploits for this vulnerability at the moment. However, it is crucial to apply the fix as soon as possible to prevent potential exploitation.
You can find more information about this vulnerability in the GSD-2022-1003156 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003156.json
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