Information disclosure in FreeBSD msdosfs driver

1) Information disclosure

EUVDB-ID: #VU82981

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5368

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in the msdosfs driver in the way it uses truncate and ftruncate system calls. A local user with write access to the msdosfs file system can retrieve data from previously deleted files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FreeBSD: 12.0 - 13.2

External links

http://security.FreeBSD.org/advisories/FreeBSD-SA-23:12.msdosfs.asc

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.