Time-of-check Time-of-use (TOCTOU) Affecting openshift-clients package, versions <0:4.8.0-202106281541.p0.git.1077b05.assembly.stream.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
6.6% (93rd percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFTCLIENTS-18681296
  • published12 Aug 2026
  • disclosed19 May 2021

Introduced: 19 May 2021

CVE-2021-30465  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade RHEL:7 openshift-clients to version 0:4.8.0-202106281541.p0.git.1077b05.assembly.stream.el7 or higher.
This issue was patched in RHSA-2021:2437.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift-clients package and not the openshift-clients package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

CVSS Base Scores

version 3.1