Access Restriction Bypass Affecting kernel-kdump-devel package, versions <0:2.6.32-573.el6


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th 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-RHEL6-KERNELKDUMPDEVEL-1497945
  • published26 Jul 2021
  • disclosed15 Dec 2014

Introduced: 15 Dec 2014

CVE-2014-8133  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade RHEL:6 kernel-kdump-devel to version 0:2.6.32-573.el6 or higher.
This issue was patched in RHSA-2015:1272.

NVD Description

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

arch/x86/kernel/tls.c in the Thread Local Storage (TLS) implementation in the Linux kernel through 3.18.1 allows local users to bypass the espfix protection mechanism, and consequently makes it easier for local users to bypass the ASLR protection mechanism, via a crafted application that makes a set_thread_area system call and later reads a 16-bit value.

CVSS Scores

version 3.1