Information Exposure Affecting kernel-debug package, versions <0:2.6.32-504.23.4.el6


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE6-KERNELDEBUG-2496122
  • published10 Apr 2022
  • disclosed26 Dec 2014

Introduced: 26 Dec 2014

CVE-2014-9419  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Oracle:6 kernel-debug to version 0:2.6.32-504.23.4.el6 or higher.
This issue was patched in ELSA-2015-1081.

NVD Description

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

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.

References

CVSS Scores

version 3.1