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CVE-2014-9717

UnknownEPSS 0.33%

Last modified

CVE-2014-9717 is a vulnerability of currently unknown severity. fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

Metrics

EPSS Probability
0.33%

24.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel<= 4.0.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2014-9717?
fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.
How severe is CVE-2014-9717?
Severity scoring for CVE-2014-9717 is pending analysis. The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2014-9717?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-9717?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST