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Access Restriction Bypass Affecting kernel-uek-debug package, versions <0:2.6.39-400.250.9.el5uek

Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2504687
  • published 10 Apr 2022
  • disclosed 17 Dec 2014
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Introduced: 17 Dec 2014

CVE-2014-8133 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.39-400.250.9.el5uek or higher.
This issue was patched in ELSA-2015-3054.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:5 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.

References

CVSS Scores

version 3.1
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Snyk

4 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

4 medium
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Red Hat

3.3 low