#VU107628 Exposure of Sensitive System Information to an Unauthorized Control Sphere in cifs-utils - CVE-2025-2312

Vulnerability identifier: #VU107628

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-2312

CWE-ID: CWE-497

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
cifs-utils
Server applications / Other server solutions

Vendor: Distrotech

Description

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

The vulnerability exist due to cifs.upcall program from the cifs-utils package makes an upcall to the wrong namespace in containerized environments when trying to obtain Kerberos credentials. A local user can gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

cifs-utils: 6.14 - 7.1

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External links
https://git.samba.org/?p=cifs-utils.git;a=commit;h=89b679228cc1be9739d54203d28289b03352c174
https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb?id=db363b0a1d9e6b9dc556296f1b1007aeb496a8cf

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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.