Memory Ordering Vulnerability in btrfs Kernel Package
Summary
GSD-2021-1002216: btrfs: fix memory ordering between normal and ordered work functions. Affects Kernel versions >= 08a9ff3264181986d1d692a4e6fce3669700c9f8, < bd660a20fea3ec60a49709ef5360f145ec0fe779. No fix is published. How to fix ↓
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Background
The btrfs package is a file system for Linux that offers advanced features such as snapshots, pooling, and compression. It is widely used in various Linux distributions. However, a vulnerability has been discovered in the btrfs kernel package that affects the memory ordering between normal and ordered work functions.
Vulnerability Detail
The vulnerability in the btrfs kernel package arises from a memory ordering issue between normal and ordered work functions. This flaw can potentially be exploited by an attacker to manipulate the order of execution of these work functions, leading to memory corruption or other security issues. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in version v3.15 of the Linux Kernel and has been fixed in version v4.4.293.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the btrfs kernel package in Linux is vulnerable to a memory ordering issue between normal and ordered work functions. This vulnerability can potentially lead to memory corruption or other security issues. It is crucial to update the Linux Kernel to version v4.4.293 or later to mitigate the risk associated with this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
btrfs is a file system for Linux that provides advanced features like snapshots, pooling, and compression.
The impact of this vulnerability is not yet proven, but it could potentially lead to memory corruption or other security issues.
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 alert you in real-time if any open-source vulnerabilities, including this one, are detected.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the latest version to fix the issue.
You can find more information about this vulnerability in the Open Source Vulnerability Database at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002216.json
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