CVE-2021-33285
published 2021-09-07CVE-2021-33285: 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…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
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
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | ntfs-3g | < ntfs-3g 1:2021.8.22-2 (bookworm) | ntfs-3g 1:2021.8.22-2 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cbl2_ntfs-3g_2021.8.22-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| tuxera | ntfs-3g | < 2021.8.22 | 2021.8.22 |
| tuxera | ntfs-3g | >= 0 < 1:2017.3.23AR.3-4+deb11u1 | 1:2017.3.23AR.3-4+deb11u1 |
| tuxera | ntfs-3g | >= 0 < 1:2021.8.22-2 | 1:2021.8.22-2 |
| tuxera | ntfs-3g | >= 0 < 1:2021.8.22-2 | 1:2021.8.22-2 |
| tuxera | ntfs-3g | >= 0 < 1:2021.8.22-2 | 1:2021.8.22-2 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
Microsoft
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 o
vendor_msrc·2021-09-14·CVSS 7.8
CVE-2021-33285 [HIGH] CWE-787 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 o
In NTFS-3G versions Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.com/en-us/azure/azure-linux/tut
Red Hat
ntfs-3g: Out-of-bounds heap buffer access in ntfs_get_attribute_value() due to incorrect check of bytes_in_use value in MFT records
vendor_redhat·2021-08-30·CVSS 7.8
CVE-2021-33285 [HIGH] CWE-119 ntfs-3g: Out-of-bounds heap buffer access in ntfs_get_attribute_value() due to incorrect check of bytes_in_use value in MFT records
ntfs-3g: Out-of-bounds heap buffer access in ntfs_get_attribute_value() due to incorrect check of bytes_in_use value in MFT records
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.
The ntfs3g package is susceptible to a heap overflow on crafted input. When processing NTFS attributes, proper bou
Debian
CVE-2021-33285: ntfs-3g - In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supp...
vendor_debian·2021·CVSS 7.8
CVE-2021-33285 [HIGH] CVE-2021-33285: ntfs-3g - In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supp...
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.
Scope: local
bookworm: resolved (fixed in 1:2021.8.22-2)
bullseye: resolved (fixed in 1:2017.3.23AR.3-4+deb11u1)
forky: resolved (fixed in 1:2021.8.22-2)
sid: resolved (fixed in 1:2021.8.22-2)
trixie: resolved (fixed in 1:2021.8.22-2)
OSV
CVE-2021-33285: In NTFS-3G versions < 2021
osv·2021-09-07·CVSS 7.8
CVE-2021-33285 [HIGH] CVE-2021-33285: In NTFS-3G versions < 2021
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2021/08/30/1https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386https://bugzilla.redhat.com/show_bug.cgi?id=2001608https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jphttps://lists.debian.org/debian-lts-announce/2021/11/msg00013.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/https://security.gentoo.org/glsa/202301-01https://www.debian.org/security/2021/dsa-4971https://www.openwall.com/lists/oss-security/2021/08/30/1http://www.openwall.com/lists/oss-security/2021/08/30/1https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988386https://bugzilla.redhat.com/show_bug.cgi?id=2001608https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jphttps://lists.debian.org/debian-lts-announce/2021/11/msg00013.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/https://security.gentoo.org/glsa/202301-01https://www.debian.org/security/2021/dsa-4971https://www.openwall.com/lists/oss-security/2021/08/30/1
2021-09-07
Published