Data Race Vulnerability in Linux Kernel
Summary
GSD-2022-1004698: raw: Fix a data-race around sysctl_raw_l3mdev_accept. Affects Kernel versions >= 6897445fb194c8ad046df4a13e1ee9f080a5a21e, < cc9540ba5b3652c473af7e54892a48cdced87983. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. It is a critical piece of software that is constantly being developed and maintained by a large community of contributors. The vulnerability in question, identified as GSD-2022-1004698, pertains to a data race issue in the kernel's sysctl_raw_l3mdev_accept function.
Vulnerability Detail
The data race vulnerability in sysctl_raw_l3mdev_accept can lead to unpredictable behavior and potential security risks. A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization. In this case, the vulnerability arises from a lack of synchronization around the sysctl_raw_l3mdev_accept function, which can result in race conditions and inconsistent state. Attackers may be able to exploit this vulnerability to manipulate or corrupt data, potentially leading to privilege escalation or denial of service.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. It is recommended to apply the fix mentioned above by updating the Linux Kernel to a patched version.
Conclusion
The data race vulnerability in the Linux Kernel's sysctl_raw_l3mdev_accept function can pose significant security risks and should be addressed promptly. Users are advised to update their Linux Kernel to version v5.4.207 or later to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can vary depending on the specific circumstances and the attacker's capabilities. However, it has the potential to lead to data corruption, privilege escalation, or denial of service.
You can use the Vulert playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze the dependencies and alert you if any known vulnerabilities are present.
At the time of this report, there are no known public exploits for this vulnerability. However, it is always important to apply security patches promptly to mitigate the risk of potential exploits.
Yes, this vulnerability can potentially be exploited remotely if an attacker can gain access to the affected system and trigger the race condition. It is important to keep systems up to date with the latest security patches to minimize the risk of remote exploitation.
For more details about this vulnerability, including the specific code changes and references, you can refer to the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004698.json.
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