CVEvulnerability
CVE-2021-33285
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-09-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-20, CWE-787
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.
Affected configurations
• tuxera ntfs-3g (< 2021.8.22)
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• fedoraproject fedora 33
• fedoraproject fedora 34
• fedoraproject fedora 35
• debian debian linux 9.0
• debian debian linux 10.0
• debian debian linux 11.0
Related
References
- http://www.openwall.com/lists/oss-security/2021/08/30/1 Mailing List, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386 Issue Tracking, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2001608 Issue Tracking, Third Party Advisory
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202301-01 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4971 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/08/30/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/30/1 Mailing List, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386 Issue Tracking, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2001608 Issue Tracking, Third Party Advisory
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202301-01 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4971 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/08/30/1 Mailing List, Third Party Advisory