Insecure Temporary File Affecting jenkins package, versions <0:2.263.3.1612434510-1.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.2% (60th percentile)

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  • Snyk IDSNYK-RHEL8-JENKINS-4399177
  • published26 Jul 2021
  • disclosed1 Oct 2020

Introduced: 1 Oct 2020

CVE-2020-11979  (opens in a new tab)
CWE-377  (opens in a new tab)

How to fix?

Upgrade RHEL:8 jenkins to version 0:2.263.3.1612434510-1.el8 or higher.
This issue was patched in RHSA-2021:0423.

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.

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

References

CVSS Scores

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