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CVE-2024-26602 Affecting kernel-debug-modules package, versions <0:4.18.0-193.133.1.el8_2

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELDEBUGMODULES-6676059
  • published 27 Apr 2024
  • disclosed 24 Feb 2024
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Introduced: 24 Feb 2024

CVE-2024-26602 Open this link in a new tab

How to fix?

Upgrade RHEL:8 kernel-debug-modules to version 0:4.18.0-193.133.1.el8_2 or higher.
This issue was patched in RHSA-2024:2006.

NVD Description

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

In the Linux kernel, the following vulnerability has been resolved:

sched/membarrier: reduce the ability to hammer on sys_membarrier

On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

CVSS Scores

version 3.1
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NVD

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

4.7 medium
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SUSE

4.7 medium