Heap-based Buffer Overflow in NTFS-3G

Executive Summary

This vulnerability is a heap-based buffer overflow in NTFS-3G through 2026.2.25. It exists in the function build_inherited_id() located in libntfs-3g/security.c. An attacker can exploit this by creating a malicious NTFS image and placing a file in a specially crafted directory. This causes heap memory corruption in the SUID-root ntfs-3g binary, potentially leading to arbitrary code execution.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by checking the version of NTFS-3G installed on your system. Run 'ntfs-3g --version' or 'dpkg -l ntfs-3g' on Debian-based systems to verify if the vulnerable version (through 2026.2.25) is present.

Useful 0 Not Useful 0

Impact Analysis

If you use NTFS-3G on a system where the binary has SUID-root privileges, an attacker could exploit this vulnerability to gain root access. This could allow them to execute arbitrary commands, install malware, or steal sensitive data. Systems using vulnerable versions of NTFS-3G are at risk if they process untrusted NTFS images.

Useful 0 Not Useful 0

Mitigation Strategies

Immediately update NTFS-3G to the latest version beyond 2026.2.25. If updating is not possible, consider disabling the SUID bit on the ntfs-3g binary with 'chmod u-s /path/to/ntfs-3g' as a temporary workaround.

Useful 0 Not Useful 0