CVE-2021-33286: In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a hea...
In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.
Security readout for executives and security teams
CVE-2021-33286 is a memory corruption flaw in NTFS-3G before 2021.8.22. A malicious NTFS disk image or removable drive could trigger a heap buffer overflow through crafted Unicode data, potentially leading to code execution when processed by vulnerable NTFS-3G software. Exposure is most likely on Linux or Unix-like systems using NTFS-3G to mount NTFS volumes, especially desktops, file-ingestion services, backup systems, forensic workstations, and environments that process untrusted removable media or disk images. Prioritize patching systems that automatically mount media or handle external disk images. The business risk is code execution from a crafted filesystem image, but public evidence in the bundle does not show active exploitation. Mitigation focus: Upgrade NTFS-3G to 2021.8.22 or a distribution-fixed package.; Apply Debian, Gentoo, or other vendor security updates where applicable.; Disable automatic mounting of untrusted NTFS removable media..
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Potential ATT&CK relevance
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Sep 7, 2021, 00:00 UTC (UTC+00:00)
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