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osvGoogleOSV:CVE-2021-33285
HistorySep 07, 2021 - 2:15 p.m.

CVE-2021-33285

2021-09-0714:15:11
Google
osv.dev
8

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

36.4%

In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the β€œbytes_in_use” field should be less than the β€œbytes_allocated” field. When it is not, the parsing of the records proceeds into the wild.