#VU68937 Input validation error in NTFS-3G - CVE-2022-40284

Vulnerability identifier: #VU68937

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-40284

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
NTFS-3G
Universal components / Libraries / Libraries used by multiple products

Vendor: Tuxera

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due in libntfs-3g/runlist.c to application incorrectly validates certain NTFS metadata, related to zero-sized runs. A local user can abuse application behavior to escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NTFS-3G: 2009.1.1 - 2022.5.17

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External links
https://github.com/tuxera/ntfs-3g/commit/18bfc676119a1188e8135287b8327b0760ba44a1
https://github.com/tuxera/ntfs-3g/commit/76c3a799a97fbcedeeeca57f598be508ae2a1656
https://www.openwall.com/lists/oss-security/2022/10/31/2

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.