CVE-2021-39254: Buffer Overflow

Reference Links

• https://www.cve.org/CVERecord?id=CVE-2021-39254 https://nvd.nist.gov/vuln/detail/CVE-2021-39254 https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
• https://bugzilla.redhat.com/show_bug.cgi?id=2001652
• https://access.redhat.com/errata/RHSA-2021:3704
• https://access.redhat.com/errata/RHSA-2021:3703
• https://access.redhat.com/errata/RHSA-2022:1759
• https://access.redhat.com/security/cve/CVE-2021-39254
• 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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/766ISTT3KCARKFUIQT7N6WV6T63XOKG3/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSEKTKHO5HFZHWZNJNBJZA56472KRUZI/
• 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-2021-39255
• 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=2004708
• https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2004704
• https://github.com/tuxera/ntfs-3g/commits/2021.8.22
• https://access.redhat.com/security/cve/cve-2021-39254
• https://security-tracker.debian.org/tracker/CVE-2021-39254
• https://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/

Parent vulnerabilities

(Appears in the following advisories)

• RHSA-2021:3704
• RHSA-2021:3703
• RHSA-2022:1759

Frequently Asked Questions

• What is the severity of CVE-2021-39254?

  CVE-2021-39254 is classified as a high severity vulnerability due to the potential for an integer overflow leading to a heap-based buffer overflow.

• How do I fix CVE-2021-39254?

  To fix CVE-2021-39254, upgrade the ntfs-3g package to version 2021.8.22 or later for affected systems.

• What software is affected by CVE-2021-39254?

  CVE-2021-39254 affects ntfs-3g versions prior to 2021.8.22 across multiple distributions including Red Hat, Debian, and Fedora.

• What is the impact of CVE-2021-39254?

  The impact of CVE-2021-39254 includes potential remote code execution and system compromise due to the buffer overflow.

• Is CVE-2021-39254 a remote vulnerability?

  Yes, CVE-2021-39254 can be exploited remotely through a crafted NTFS image.