Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its hands while doing a node split and consequently accessing unallocated memory. Fix the problem by verifying traversed block numbers are unique.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.14.283 |
References
- https://git.kernel.org/stable/c/24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3Patch
- https://git.kernel.org/stable/c/3a3ce941645407cd0b0b7f01ad9e2ea3770f46ccPatch
- https://git.kernel.org/stable/c/3ba733f879c2a88910744647e41edeefbc0d92b2Patch
- https://git.kernel.org/stable/c/6084240bfc44bf265ab6ae7d96980469b05be0f1Patch
- https://git.kernel.org/stable/c/b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0Patch
- https://git.kernel.org/stable/c/d5a16a6df2c16eaf4de04948553ef0089dee463fPatch
- https://git.kernel.org/stable/c/e157c8f87e8fac112d6c955e69a60cdb9bc80a60Patch
- https://git.kernel.org/stable/c/ff4cafa51762da3824881a9000ca421d4b78b138Patch
FAQ
What is CVE-2022-49343?
CVE-2022-49343 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directo...
How severe is CVE-2022-49343?
CVE-2022-49343 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49343?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.