PT-2021-5777 · Ntfs-3G+7 · Ntfs-3G+7

Published 2021-08-17 · Updated 2023-01-13 · CVE-2021-39256

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions NTFS-3G versions prior to 2021.8.22

Description The issue is related to a heap-based buffer overflow in the ntfs inode lookup by name function of the NTFS-3G driver. This can be triggered by a crafted NTFS image, potentially allowing an attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For versions prior to 2021.8.22, update to version 2021.8.22 or later to resolve the issue. As a temporary workaround, consider restricting access to NTFS images from untrusted sources to minimize the risk of exploitation.

Fix

Memory Corruption

RCE

Weakness Enumeration

CWE-787

CWE-20

Related Identifiers

ALSA-2022:1759

ALT-PU-2021-2673

ALT-PU-2021-2730

ALT-PU-2021-2767

ALT-PU-2022-2244

AZL-6761

BDU:2022-00227

CESA-2022_1759

CVE-2021-39256

DLA-2819-1

DSA-4971-1

GHSA-Q759-8J5V-Q5JP

MGASA-2022-0001

OESA-2021-1365

OPENSUSE-SU-2021:1244-1

OPENSUSE-SU-2021:2971-1

OPENSUSE-SU-2021_1244-1

OPENSUSE-SU-2021_2971-1

RHSA-2021:3703

RHSA-2021:3704

RHSA-2022:1759

RHSA-2022_1759

RLSA-2022:1759

SUSE-SU-2021:2965-1

SUSE-SU-2021:2971-1

USN-5060-1

USN-5060-2

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Ntfs-3G

Red Hat

Rocky Linux

Suse

References · 247

• https://osv.dev/vulnerability/DSA-4971-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39253 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39256 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39257 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2021:2965-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39252 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-39255 · Security Note
• https://osv.dev/vulnerability/MGASA-2022-0001 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5060-2 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-39256 · Security Note
• https://osv.dev/vulnerability/AZL-6761 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5060-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2819-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39263 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39256 · Vendor Advisory