Data Races in cipso sysctl - Linux Kernel
Summary
GSD-2022-1004700: cipso: Fix data-races around sysctl. Affects Kernel versions >= 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 0e41a0f73ccb9be112a80bde3804a771633caaef. 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 hardware resources, process scheduling, and system security. The cipso module in the Linux Kernel is responsible for implementing the Common IP Security Option (CIPSO) protocol, which enables the labeling of network packets with security attributes.
The vulnerability in the cipso module involves data races around the sysctl interface. Data races occur when multiple threads or processes access shared data concurrently without proper synchronization. In this case, the sysctl interface, which allows runtime configuration of kernel parameters, is susceptible to data races. This vulnerability can lead to unpredictable behavior, including crashes, incorrect results, or security breaches.
Vulnerability Detail
The data-races vulnerability in the cipso sysctl interface of the Linux Kernel can be exploited by malicious actors to manipulate kernel parameters and potentially compromise system security. By exploiting the data races, an attacker could gain unauthorized access to sensitive information, modify critical system settings, or cause denial-of-service conditions. The vulnerability was introduced in version v2.6.19 of the Linux Kernel and has been fixed in version v5.4.207 by commit 0e41a0f73ccb9be112a80bde3804a771633caaef.
It is important to note that the impact and attack plausibility of this vulnerability have not been proven yet. Further analysis and testing are required to assess the actual risk posed by this vulnerability.
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. It is recommended to apply the fix mentioned in the 'how_to_fix' section or update to the latest version of the Linux Kernel.
Conclusion
The data-races vulnerability in the cipso sysctl interface of the Linux Kernel can potentially compromise system security. It is crucial to update the Linux Kernel to the fixed version or apply the necessary patch to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The cipso module in the Linux Kernel implements the Common IP Security Option (CIPSO) protocol, which allows the labeling of network packets with security attributes.
A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization. It can lead to unpredictable behavior and potential security vulnerabilities.
The data-races vulnerability in the cipso sysctl interface could allow attackers to manipulate kernel parameters, gain unauthorized access to sensitive information, modify critical system settings, or cause denial-of-service conditions.
No, the impact and attack plausibility of this vulnerability have not been proven yet. Further analysis and testing are required to assess the actual risk posed by this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.4.207 or later. Alternatively, users can apply the specific commit (0e41a0f73ccb9be112a80bde3804a771633caaef) that fixes the vulnerability to their existing kernel source code and rebuild the kernel.
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