Missing Authorization Affecting kernel-debug-devel package, versions <0:4.18.0-193.79.1.el8_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    9.52% (95th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELDEBUGDEVEL-4031292
  • published 8 Feb 2022
  • disclosed 7 Feb 2022

How to fix?

Upgrade RHEL:8 kernel-debug-devel to version 0:4.18.0-193.79.1.el8_2 or higher.
This issue was patched in RHSA-2022:0820.

NVD Description

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

A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.

CVSS Scores

version 3.1
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NVD

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

7 high
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SUSE

7 high