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TI-2021-21502 Aliases CVE-2021-46790GHSA-274j-jr8v-77f7

ntfsck in NTFS-3G through 2021.8.22 has a heap-based buffer overflow involving…

Priority LOW 35CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 3 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

ntfsck in NTFS-3G through 2021.8.22 has a heap-based buffer overflow involving buffer+512*3-2. NOTE: the upstream position is that ntfsck is deprecated; however, it is shipped by some Linux distributions.

Why it matters now

EPSS 0.00504 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 3 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:tuxera:ntfs-3g:*:*:*:*:*:*:*:*up to 2021.8.22VulnerableTuxera
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*36VulnerableFedoraproject
  • cpe:2.3:a:tuxera:ntfs-3g:*:*:*:*:*:*:*:* Versions up to 2021.8.22 Vulnerable ·Tuxera
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject

Remediation

Red Hat 2 advisories

  • RHSA-2023:2757 Released 2023-05-16 · Red Hat rating Moderate
    virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20210217-1.module+el8.8.0+16781+9f4724c2.noarch::virt:rhel, SLOF-20210217-1.module+el8.8.0+16781+9f4724c2.src::virt:rhel, hivex-1.3.18-23.module+el8.8.0+16781+9f4724c2.aarch64::virt:rhel +47
    • Red Hat Enterprise Linux CRB (v. 8) SLOF-20210217-1.module+el8.8.0+16781+9f4724c2.src::virt-devel:rhel, hivex-1.3.18-23.module+el8.8.0+16781+9f4724c2.i686::virt-devel:rhel, hivex-devel-1.3.18-23.module+el8.8.0+16781+9f4724c2.i686::virt-devel:rhel +47
  • RHSA-2023:2179 Released 2023-05-09 · Red Hat rating Moderate
    libguestfs-winsupport security update
    • Red Hat Enterprise Linux AppStream (v. 9) libguestfs-winsupport-9.2-1.el9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:2757
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2179
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2023:2757
Not affected: 2 products
  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46790
  2. 2026-10-03 Alias added: GHSA-274j-jr8v-77f7

References

Exploit 1

Advisory 6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences