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CVE-2014-3940

UnknownEPSS 0.27%

Last modified

CVE-2014-3940 is a vulnerability of currently unknown severity. The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.

Metrics

EPSS Probability
0.27%

19.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatEnterprise Linux6.0
RedhatEnterprise Mrg2.0
LinuxLinux Kernel<= 3.14.5
LinuxLinux Kernel3.14
LinuxLinux Kernel3.14.1
LinuxLinux Kernel3.14.2
LinuxLinux Kernel3.14.3
LinuxLinux Kernel3.14.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2014-3940?
The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
How severe is CVE-2014-3940?
Severity scoring for CVE-2014-3940 is pending analysis. The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2014-3940?
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-2014-3940?

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

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Source: NVD / NIST