Race Condition Vulnerability in Linux Kernel's CAN-ISOTP Module
Summary
GSD-2022-1000410: can: isotp: fix potential CAN frame reception race in isotp_rcv(). Affects Kernel versions >= e057dd3fc20ffb3d7f150af46542a51b59b90127, < f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for managing system resources, including device drivers, process management, and memory management. The CAN-ISOTP module within the Kernel enables communication over the ISO-TP (ISO 15765-2) protocol, which is commonly used in automotive applications. This module allows the transmission and reception of CAN frames encapsulated within ISO-TP frames.
Vulnerability Detail
The vulnerability identified as GSD-2022-1000410 in the Linux Kernel's CAN-ISOTP module involves a potential race condition during the reception of CAN frames in the isotp_rcv() function. This race condition could lead to unexpected behavior and potential security vulnerabilities. Although the actual impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the integrity and security of the system. The vulnerability was introduced in version v5.10 of the Linux Kernel and has been fixed in version v5.15.24.
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 advisable to update the Kernel to the recommended version.
Conclusion
The race condition vulnerability in the Linux Kernel's CAN-ISOTP module can be addressed by updating the Kernel to version v5.15.24 or later. This update ensures the system's integrity and security. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is an open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for managing system resources.
The CAN-ISOTP module within the Linux Kernel enables communication over the ISO-TP protocol, commonly used in automotive applications. It allows the transmission and reception of CAN frames encapsulated within ISO-TP frames.
A race condition is a software vulnerability that occurs when multiple threads or processes access shared resources concurrently, leading to unexpected behavior or security issues.
The race condition vulnerability in the Linux Kernel's CAN-ISOTP module could potentially result in unexpected behavior and security vulnerabilities. However, the actual impact and attack plausibility have not been proven.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.24 or later, which includes the necessary fix for the race condition in the isotp_rcv() function.
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