Resource Exhaustion Affecting openshift-clients package, versions <0:4.8.0-202106281541.p0.git.1077b05.assembly.stream.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFTCLIENTS-5245577
  • published26 Mar 2023
  • disclosed6 May 2021

Introduced: 6 May 2021

CVE-2021-21419  (opens in a new tab)
CWE-400  (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.

Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.

CVSS Scores

version 3.1