CVE-2014-3940

Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 05 Jun 2014, 17:00
Last modified:06 Aug 2024, 10:57

Vulnerability Summary

Overall Risk (default)
low
16/100
CVSS Score
4 MEDIUM
v2.0 (nvd)
EPSS Score
0.04% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Jun 2014, 17:00
Published
Vulnerability first disclosed
06 Aug 2024, 10:57
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 4AV:L/AC:H/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.04%• Percentile: 13%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • linux•linux_kernel

    ≤ 3.14.5 | 3.14 | 3.14:rc1 | 3.14:rc2 | 3.14:rc3 | 3.14:rc4 | 3.14:rc5 | 3.14:rc6 | 3.14:rc7 | 3.14:rc8 | 3.14.1 | 3.14.2 | 3.14.3 | 3.14.4

  • redhat•enterprise_linux

    6.0

  • redhat•enterprise_mrg

    2.0

References (9)