CVE-2025-2312
Moderate
cifs.upcall makes an upcall to the wrong namespace in containerized environments
A flaw was found in cifs-utils. When trying to obtain Kerberos credentials, the cifs.upcall program from the cifs-utils package makes an upcall to the wrong namespace in containerized environments. This issue may lead to disclosing sensitive data from the host's Kerberos credentials cache.
Exploit probability
0.2%
Published
March 25, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
42 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-2312
View original source
A flaw was found in cifs-utils. When trying to obtain Kerberos credentials, the cifs.upcall program from the cifs-utils package makes an upcall to the wrong namespace in containerized environments. This issue may lead to disclosing sensitive data from the host's Kerberos credentials cache.
05 / REFERENCES
Further evidence
- https://git.samba.org/?p=cifs-utils.git;a=commit;h=89b679228cc1be9739d54203d28289b03352c174
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2312.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-2312
- https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb?id=db363b0a1d9e6b9dc556296f1b1007aeb496a8cf