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Information Exposure Affecting kernel-rt-modules-extra package, versions <0:4.18.0-513.11.1.rt7.313.el8_9

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.07% (33rd percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTMODULESEXTRA-5831550
  • published 9 Aug 2023
  • disclosed 8 Aug 2023
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Introduced: 8 Aug 2023

CVE-2023-20569 Open this link in a new tab
CWE-203 Open this link in a new tab

How to fix?

Upgrade Centos:8 kernel-rt-modules-extra to version 0:4.18.0-513.11.1.rt7.313.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.

References

CVSS Scores

version 3.1
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NVD

4.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None
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Red Hat

5.6 medium
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SUSE

5.6 medium