CVE-2025-2312

cifs.upcall makes an upcall to the wrong namespace in containerized environments

Description

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: cifs-utils cifs-utils
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-2312?
CVE-2025-2312 has been scored as a medium severity vulnerability.
How to fix CVE-2025-2312?
To fix CVE-2025-2312, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-2312 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-2312 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-2312?
CVE-2025-2312 affects cifs-utils cifs-utils.
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