Missing Authorization Affecting bpftool package, versions <0:4.18.0-305.45.1.el8_4


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 IDSNYK-RHEL8-BPFTOOL-4169671
  • published8 Feb 2022
  • disclosed7 Feb 2022

Introduced: 7 Feb 2022

CVE-2022-0492  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-305.45.1.el8_4 or higher.
This issue was patched in RHSA-2022:1455.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool 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