CVE-2022-49553

fs/ntfs3: validate BOOT sectors_per_clusters

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate BOOT sectors_per_clusters When the NTFS BOOT sectors_per_clusters field is > 0x80, it represents a shift value. Make sure that the shift value is not too large before using it (NTFS max cluster size is 2MB). Return -EVINVAL if it too large. This prevents negative shift values and shift values that are larger than the field size. Prevents this UBSAN error: UBSAN: shift-out-of-bounds in ../fs/ntfs3/super.c:673:16 shift exponent -192 is negative

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/58cf68a1886d14ffdc5c892ce483a82156769e88
https://git.kernel.org/stable/c/4746c49b11b2403f5b5b07c6eac9e60663dcd9a3
https://git.kernel.org/stable/c/a2b6986316a2d106f6951e76db70fa4b2fde64a9
https://git.kernel.org/stable/c/a3b774342fa752a5290c0de36375289dfcf4a260

Frequently Asked Questions

What is the severity of CVE-2022-49553?: CVE-2022-49553 has not yet been assigned a CVSS score.
How to fix CVE-2022-49553?: To fix CVE-2022-49553, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49553 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49553 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49553?: CVE-2022-49553 affects Linux Linux, Linux Linux.

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