CVE-2021-33285

7.8 HIGH
Published: September 07, 2021 Modified: December 03, 2025
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/30/1
Source: cve@mitre.org
Mailing List Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386
Source: cve@mitre.org
Issue Tracking Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2001608
Source: cve@mitre.org
Issue Tracking Third Party Advisory
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
Source: cve@mitre.org
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
Source: cve@mitre.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
Source: cve@mitre.org
https://security.gentoo.org/glsa/202301-01
Source: cve@mitre.org
Third Party Advisory
https://www.debian.org/security/2021/dsa-4971
Source: cve@mitre.org
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/08/30/1
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/30/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2001608
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/202301-01
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2021/dsa-4971
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/08/30/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

20 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.0%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-787 CWE-20

Affected Vendors

redhat debian fedoraproject tuxera

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