Improper Certificate Validation Affecting jenkins package, versions <0:2.289.1.1624020353-1.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-RHEL8-JENKINS-4397060
  • published26 Mar 2023
  • disclosed14 Jul 2021

Introduced: 14 Jul 2021

CVE-2021-3636  (opens in a new tab)
CWE-295  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade RHEL:8 jenkins to version 0:2.289.1.1624020353-1.el8 or higher.
This issue was patched in RHSA-2021:2437.

NVD Description

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

It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.

CVSS Scores

version 3.1