net-timestamp: Convert sk->sk_tskey to atomic_t in Kernel
Summary
GSD-2022-1000736: net-timestamp: convert sk->sk_tskey to atomic_t. Affects Kernel versions >= 09c2d251b70723650ba47e83571ff49281320f7c, < caf122caad0374f79dcf821b5cb46ad320d49848. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The net-timestamp module within the Kernel is responsible for handling network timestamps. Network timestamps are used to measure the time taken for packets to traverse a network. The sk->sk_tskey variable in the net-timestamp module is vulnerable to a security issue.
Vulnerability Detail
The vulnerability in the net-timestamp module arises from the use of a non-atomic variable, sk->sk_tskey, which is used to store the timestamp key for a socket. This vulnerability can potentially lead to race conditions and incorrect timestamp assignments, compromising the accuracy and integrity of network timestamps. An attacker could exploit this vulnerability to manipulate network timestamps, potentially leading to various security implications, such as bypassing network security measures or disrupting network monitoring systems.
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
The net-timestamp module in the Kernel is vulnerable to a security issue related to the sk->sk_tskey variable. This vulnerability can lead to race conditions and incorrect timestamp assignments, potentially compromising the accuracy and integrity of network timestamps. It is recommended to update to Linux Kernel version v5.16.12 or any subsequent version that includes the fix. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The net-timestamp module in the Kernel is responsible for handling network timestamps, which are used to measure the time taken for packets to traverse a network.
This vulnerability can lead to race conditions and incorrect timestamp assignments, compromising the accuracy and integrity of network timestamps. It could be exploited by attackers to manipulate network timestamps and potentially bypass network security measures or disrupt network monitoring systems.
To fix this vulnerability, update to Linux Kernel version v5.16.12 or any subsequent version that includes the fix. The sk->sk_tskey variable should be converted to an atomic_t type to ensure atomic operations and prevent race conditions.
No specific workaround has been mentioned for this vulnerability.
For more details about this vulnerability, you can refer to the vulnerability ID GSD-2022-1000736 in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000736.json
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