Vulnerability in Linux Kernel: cgroup: Use separate src/dst nodes when preloading css_sets for migration
Summary
GSD-2022-1004585: cgroup: Use separate src/dst nodes when preloading css_sets for migration. Affects Kernel versions >= f817de98513d060023be4fa1d061b29a6515273e, < 7657e3958535d101a24ab4400f9b8062b9107cc4. No fix is published. How to fix ↓
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Background
The Linux Kernel is a critical component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. It is a complex and widely used open-source package that undergoes continuous development and maintenance. One of its features is the cgroup subsystem, which allows for resource isolation and control. However, a vulnerability has been discovered in the cgroup subsystem that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in the cgroup subsystem of the Linux Kernel arises from the improper handling of css_sets during migration. Specifically, when preloading css_sets for migration, the same source and destination nodes are used, which can lead to a security issue. Although the impact and attack plausibility have not been proven, this vulnerability has the potential to be exploited by malicious actors. It was introduced in version v3.16 of the Linux Kernel and has been fixed in version v5.10.132 by commit 7657e3958535d101a24ab4400f9b8062b9107cc4.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, a vulnerability has been identified in the cgroup subsystem of the Linux Kernel that could potentially be exploited by attackers. It is recommended to update the Linux Kernel to version v5.10.132 or later to fix this vulnerability. Regularly updating the Linux Kernel is also advised to ensure the latest security patches are applied. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown as the actual attack plausibility has not been proven. However, if successfully exploited, it could potentially lead to security breaches or unauthorized access to system resources.
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 and Vulert will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch has been released in version v5.10.132 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
The remote exploitability of this vulnerability is currently unknown. Further analysis and testing would be required to determine if remote exploitation is possible.
There are no known instances of this vulnerability being exploited in the wild. However, it is important to apply the necessary updates and patches to mitigate the risk.
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