Vulnerability in ext4: fix bug_on in __es_tree_search
Summary
GSD-2022-1003307: ext4: fix bug_on in __es_tree_search. Affects Kernel versions >= 5946d089379a35dda0e531710b48fca05446a196, < 3c617827cd51018bc377bd2954e176920ddbcfad. No fix is published. How to fix ↓
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Background
The ext4 package is a file system driver for the Linux Kernel. It provides support for the fourth extended file system (ext4) and is widely used in Linux distributions. The package is responsible for managing file storage and metadata on disk. However, a vulnerability has been discovered in the package that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in ext4 is related to a bug_on condition in the __es_tree_search function. This bug_on condition can be triggered under certain circumstances, leading to a kernel panic or system crash. An attacker with local access to the system could potentially exploit this vulnerability to cause a denial of service (DoS) attack or gain elevated privileges. The vulnerability was introduced in version v3.13 of the Linux Kernel and has been fixed in version v5.15.46.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is necessary to update the Linux Kernel to the fixed version.
Conclusion
In conclusion, the ext4 package in the Linux Kernel is vulnerable to a bug_on condition in the __es_tree_search function. This vulnerability can be exploited by attackers to cause a denial of service (DoS) attack or gain elevated privileges. It is crucial to update the Linux Kernel to version v5.15.46 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
ext4 is a file system driver for the Linux Kernel that provides support for the fourth extended file system (ext4). It is widely used in Linux distributions.
The vulnerability could potentially be exploited by attackers to cause a denial of service (DoS) attack or gain elevated privileges on the affected system.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
No, there is no known workaround for this vulnerability. It is necessary to update the Linux Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2022-1003307.json file available in the GSD database repository (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003307.json).
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