CVE-2021-39256: Buffer Overflow
First published: Mon Sep 06 2021(Updated: )
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_inode_lookup_by_name in NTFS-3G < 2021.8.22.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ntfs3g | <2021.8.22 | 2021.8.22 |
| debian/ntfs-3g | 1:2017.3.23AR.3-4+deb11u3 1:2022.10.3-1 1:2022.10.3-3 | |
| ntfs-3g | <2021.8.22 | |
| Debian Linux | =9.0 | |
| Debian Linux | =10.0 | |
| Debian Linux | =11.0 |
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Reference Links
- https://github.com/tuxera/ntfs-3g/releases
- https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
- https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
- https://security.gentoo.org/glsa/202301-01
- https://www.debian.org/security/2021/dsa-4971
- https://www.openwall.com/lists/oss-security/2021/08/30/1
- https://github.com/tuxera/ntfs-3g
- https://access.redhat.com/security/cve/CVE-2021-33285
- https://access.redhat.com/security/cve/CVE-2021-35269
- https://access.redhat.com/security/cve/CVE-2021-35268
- https://access.redhat.com/security/cve/CVE-2021-33289
- https://access.redhat.com/security/cve/CVE-2021-33286
- https://access.redhat.com/security/cve/CVE-2021-35266
- https://access.redhat.com/security/cve/CVE-2021-33287
- https://access.redhat.com/security/cve/CVE-2021-35267
- https://access.redhat.com/security/cve/CVE-2021-39251
- https://access.redhat.com/security/cve/CVE-2021-39252
- https://access.redhat.com/security/cve/CVE-2021-39253
- https://access.redhat.com/security/cve/CVE-2021-39254
- https://access.redhat.com/security/cve/CVE-2021-39255
- https://access.redhat.com/security/cve/CVE-2021-39256
- https://access.redhat.com/security/cve/CVE-2021-39257
- https://access.redhat.com/security/cve/CVE-2021-39258
- https://access.redhat.com/security/cve/CVE-2021-39259
- https://access.redhat.com/security/cve/CVE-2021-39260
- https://access.redhat.com/security/cve/CVE-2021-39261
- https://access.redhat.com/security/cve/CVE-2021-39262
- https://access.redhat.com/security/cve/CVE-2021-39263
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2006455
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2006453
- https://access.redhat.com/errata/RHSA-2021:3703
- https://access.redhat.com/security/cve/cve-2021-39256
- https://access.redhat.com/errata/RHSA-2021:3704
- https://access.redhat.com/errata/RHSA-2022:1759
- https://bugzilla.redhat.com/show_bug.cgi?id=2001654
- https://security-tracker.debian.org/tracker/CVE-2021-39256
Frequently Asked Questions
What is the severity of CVE-2021-39256?
CVE-2021-39256 is classified as a high severity vulnerability due to its potential for causing a heap-based buffer overflow.
How do I fix CVE-2021-39256?
To fix CVE-2021-39256, update the ntfs-3g software to version 2021.8.22 or later.
What systems are affected by CVE-2021-39256?
CVE-2021-39256 affects versions of ntfs-3g prior to 2021.8.22 and various Debian Linux distributions.
What type of issue does CVE-2021-39256 represent?
CVE-2021-39256 represents a heap-based buffer overflow vulnerability that can be exploited through crafted NTFS images.
Who reported CVE-2021-39256?
CVE-2021-39256 was reported through security advisories related to vulnerabilities found in the NTFS-3G file system driver.
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