Race Condition Affecting kernel-debuginfo-common-x86_64 package, versions <0:4.18.0-372.16.1.el8_6


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-ROCKY8-KERNELDEBUGINFOCOMMONX8664-3198207
  • published 5 Jan 2023
  • disclosed 1 Sep 2022

How to fix?

Upgrade Rocky-Linux:8 kernel-debuginfo-common-x86_64 to version 0:4.18.0-372.16.1.el8_6 or higher.
This issue was patched in RLSA-2022:5564.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo-common-x86_64 package and not the kernel-debuginfo-common-x86_64 package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.

CVSS Scores

version 3.1
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NVD

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

8.2 high
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Red Hat

7.4 high