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Fencer Intel
medium 6.5

CVE-2021-27025 json

Silent Configuration Failure in Puppet Agent

published 4y ago modified 4mo ago also GHSA-q4g7-jrxv-67r9 , EUVD-2021-2564

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

A flaw was discovered in Puppet Agent where the agent may silently ignore Augeas settings or may be vulnerable to a Denial of Service condition prior to the first 'pluginsync'.

Patch / fix

  • rubygems puppet 6.25.1, 7.12.1
  • puppet puppet 2021.4.0
  • puppet puppet_agent 6.25.1, 7.12.1
  • puppet puppet_enterprise 2019.8.9
  • puppet openstack 16.2, openstack 16.1 5.5.10-14.el8ost
  • puppet-server openstack 16.2, openstack 16.1 5.5.10-14.el8ost
  • puppet-headless openstack 16.2, openstack 16.1 5.5.10-14.el8ost
  • puppet-agent RHEL 6.10 SATELLITE_TOOLS, RHEL 6.9 SATELLITE_TOOLS 6.26.0-1.el6sat
  • puppet-agent satellite capsule 6.10, satellite 6.10, RHEL 6.10 SATELLITE_TOOLS +1 more 6.26.0-1.el7sat
  • puppet-agent RHEL 6.10 SATELLITE_TOOLS, RHEL 6.9 SATELLITE_TOOLS 6.26.0-1.el8sat
  • puppetserver satellite capsule 6.10, satellite 6.10 6.18.0-1.el7sat

red hat advisories RHSA-2022:8862RHSA-2022:8846RHSA-2022:4866RHSA-2022:4867RHSA-2022:1708

  • puppet Arch Linux 7.12.1-1

arch linux advisories AVG-2541

Is CVE-2021-27025 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-27025 updated cvss 6.3

puppet: silent configuration failure in agent

  • Red Hat OpenStack Platform 10 (Newton) puppet, puppet-server Red Hat OpenStack Platform 13 (Queens) puppet, puppet-server
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Update Infrastructure 3 for Cloud Providers puppet
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenStack Platform 16.1 puppet 5.5.10-14.el8ost, puppet-server 5.5.10-14.el8ost, puppet-headless 5.5.10-14.el8ost
    fixed: vendor fix RHSA-2022:8862
  • Red Hat OpenStack Platform 16.2 puppet 5.5.10-14.el8ost, puppet-server 5.5.10-14.el8ost, puppet-headless 5.5.10-14.el8ost
    fixed: vendor fix RHSA-2022:8846
  • Red Hat Satellite 6.10 puppet-agent 6.26.0-1.el7sat, puppetserver 6.18.0-1.el7sat Red Hat Satellite Capsule 6.10 puppet-agent 6.26.0-1.el7sat, puppetserver 6.18.0-1.el7sat
    fixed: vendor fix RHSA-2022:1708
  • Red Hat Satellite Tools 6.9 (v. 6.9.ELS Server) puppet-agent 6.26.0-1.el6sat Red Hat Satellite Tools 6.9 (v. 7 Client) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7 ComputeNode) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7 Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7 Workstation) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.2.AUS Server) puppet-agent 6.26.0-1.el7sat
    +27 more products
    Red Hat Satellite Tools 6.9 (v. 7.3.AUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.4.AUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.4.E4S Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.4.TUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.6.AUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.6.E4S Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.6.EUS Compute Node) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.6.EUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.6.TUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.7.AUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.7.E4S Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.7.EUS Compute Node) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.7.EUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 7.7.TUS Server) puppet-agent 6.26.0-1.el7sat Red Hat Satellite Tools 6.9 (v. 8.0.E4S Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.1.E4S Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.1.EUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.2.AUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.2.EUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.2.TUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.4.AUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.4.E4S Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.4.EUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.6.AUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.6.E4S Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.6.EUS Server) puppet-agent 6.26.0-1.el8sat Red Hat Satellite Tools 6.9 (v. 8.6.TUS Server) puppet-agent 6.26.0-1.el8sat
    fixed: vendor fix RHSA-2022:4867

34 more fixed, 2 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
rubygems puppet
>=7.0.0, <7.12.1
<6.25.1
7.12.1
6.25.1

Affected products

  • n/a Puppet Enterprise, Puppet Agent

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.