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Information Exposure Affecting perf package, versions <0:3.10.0-327.el7

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-CENTOS7-PERF-2055627
  • published 26 Jul 2021
  • disclosed 8 Dec 2014
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Introduced: 8 Dec 2014

CVE-2014-9419 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Centos:7 perf to version 0:3.10.0-327.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:7 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
Expand this section

NVD

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

Red Hat

3.3 low