Data Races in igmp: Fix data-races around sysctl_igmp_llm_reports
Summary
GSD-2022-1004674: igmp: Fix data-races around sysctl_igmp_llm_reports. Affects Kernel versions >= df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < 1656ecaddf90e2a070ec2d2404cdae3edf80faca. No fix is published. How to fix ↓
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Background
The igmp package is a part of the Linux Kernel ecosystem. It is responsible for handling Internet Group Management Protocol (IGMP) messages, which are used for managing multicast group memberships on IP networks. The package provides functionality for joining and leaving multicast groups, as well as querying group membership information. The vulnerability in question relates to data-races around the sysctl_igmp_llm_reports feature.
Vulnerability Detail
The vulnerability in the igmp package involves data-races around the sysctl_igmp_llm_reports functionality. Data-races occur when multiple threads or processes access shared data concurrently without proper synchronization. In this case, the vulnerability can lead to inconsistent or incorrect behavior when modifying or accessing the sysctl_igmp_llm_reports variable. While the impact and attack plausibility have not been proven, data-races can potentially result in unexpected program behavior, crashes, or even security vulnerabilities. The vulnerability was introduced in version v4.3 of the Linux Kernel and has been fixed in version v5.4.208.
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 igmp package in the Linux Kernel is vulnerable to data-races around the sysctl_igmp_llm_reports feature. This vulnerability can potentially lead to unexpected program behavior, crashes, or security vulnerabilities. To mitigate the issue, it is recommended to update the Kernel to version v5.4.208 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but data-races can potentially lead to unexpected program behavior, crashes, or security vulnerabilities.
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 alert you in real-time if the vulnerability is present.
No known exploit for this vulnerability has been reported at this time.
No specific mitigations have been provided for this vulnerability. It is recommended to update the Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2022-1004674 entry on the Cloud Security Alliance GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004674.json).
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