CVE-2021-39251
published 2021-09-07CVE-2021-39251: A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
Affected
16 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 | — | — |
| 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
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
vendor_msrc·2021-09-14·CVSS 7.8
CVE-2021-39251 [HIGH] CWE-476 A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G 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 R
Red Hat
ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open()
vendor_redhat·2021-08-30·CVSS 7.8
CVE-2021-39251 [HIGH] CWE-119 ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open()
ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open()
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
The ntfs3g package is susceptible to an input validation attack. When processing a crafted NTFS image there is an improper check. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Package: libguestfs-winsupport (Red Hat Enterprise Linux 7) - Out of support scope
Package: virt:8.2/libguestfs-winsupport (Red Hat Enterprise Linux 8 Advanced Virtualization) - Affected
Package: virt:av/libguestfs-winsupport (Red Hat Enterprise Linux 8 Advanced Virtualization) - Affected
Package: libguestfs-winsupport (Red Hat Enterprise Linux 9) - Affected
Debian
CVE-2021-39251: ntfs-3g - A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_o...
vendor_debian·2021·CVSS 7.8
CVE-2021-39251 [HIGH] CVE-2021-39251: ntfs-3g - A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_o...
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
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)
GHSA
GHSA-rwpj-m8w9-33j2: A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021
ghsa_unreviewed·2022-05-24
CVE-2021-39251 [HIGH] CWE-20 GHSA-rwpj-m8w9-33j2: A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
OSV
CVE-2021-39251: A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021
osv·2021-09-07·CVSS 7.8
CVE-2021-39251 [HIGH] CVE-2021-39251: A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
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=2001649https://github.com/tuxera/ntfs-3g/releaseshttps://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-4971http://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=2001649https://github.com/tuxera/ntfs-3g/releaseshttps://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-4971
2021-09-07
Published