SB2014060519 - Race condition in Linux kernel

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Main Vulnerability Database SB2014060519

SB2014060519 - Race condition in Linux kernel

Published: June 5, 2014

Security Bulletin ID SB2014060519
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Race condition (CVE-ID: CVE-2014-3940)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

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.


Remediation

Install update from vendor's website.

References