Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2014-3940

Severity CVSS v4.0:
Pending analysis
Type:
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
05/06/2014
Last modified:
12/04/2025

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.

Impact

Vector 2.0
AV:L/AC:H/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:L/AC:H/Au:N/C:N/I:N/A:C

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.14.5 (including)
cpe:2.3:o:linux:linux_kernel:3.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:rc8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14.3:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools