af_packet: Fix Data Race in packet_setsockopt / packet_setsockopt
Summary
GSD-2022-1000277: af_packet: fix data-race in packet_setsockopt / packet_setsockopt. Affects Kernel versions >= 47dceb8ecdc1c3ad1818dfea3d659a05b74c3fc2, < 34321180b94dbcd12abc130eb48c4ce67a3408aa. No fix is published. How to fix ↓
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Background
The af_packet package is a component of the Linux Kernel ecosystem. It provides a socket interface for packet-level network access. This vulnerability affects versions of the Linux Kernel starting from v4.3 and was fixed in v5.15.20. The vulnerability is related to a data race in the packet_setsockopt and packet_setsockopt functions.
Vulnerability Detail
The vulnerability in af_packet arises due to a data race in the packet_setsockopt and packet_setsockopt functions. This data race can lead to unpredictable behavior and potential security issues. While the impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the stability and security of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As this vulnerability has been fixed in the latest version of the Linux Kernel, there is no specific workaround available. It is recommended to update to the latest version to mitigate the risk.
Conclusion
The af_packet vulnerability, which involves a data race in the packet_setsockopt and packet_setsockopt functions, has been fixed in Linux Kernel version v5.15.20. It is recommended to update to the latest version to ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
af_packet is a component of the Linux Kernel that provides a socket interface for packet-level network access.
A data race is a condition that occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable behavior and potential security vulnerabilities.
The impact of this vulnerability is not yet proven, but it has the potential to result in security issues and instability in the system.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file, such as package-lock.json, and Vulert will analyze it for open-source vulnerabilities in real-time.
You can find more information about this vulnerability in the Open Source Vulnerability Database. The specific vulnerability ID is GSD-2022-1000277.
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