Privilege escalation in Tuxera NTFS-3G



Published: 2022-11-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-40284
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
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NTFS-3G
Universal components / Libraries / Libraries used by multiple products

Vendor Tuxera

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU68937

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40284

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

External links

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


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.



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