Race Condition Affecting kernel-kdump package, versions <0:2.6.32-573.el6


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS6-KERNELKDUMP-2119227
  • published26 Jul 2021
  • disclosed18 Mar 2014

Introduced: 18 Mar 2014

CVE-2014-3940  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Centos:6 kernel-kdump to version 0:2.6.32-573.el6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-kdump package and not the kernel-kdump package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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 Scores

version 3.1