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 "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-09-07T00:00:00

Updated: 2024-08-03T23:42:20.414Z

Reserved: 2021-05-20T00:00:00

Link: CVE-2021-33285

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-07T14:15:11.567

Modified: 2024-11-21T06:08:38.330

Link: CVE-2021-33285

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-08-30T00:00:00Z

Links: CVE-2021-33285 - Bugzilla