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TI-2023-01780 Aliases CVE-2023-1894GHSA-x5cv-mqxq-8q96

Regular expression denial of service in Puppet Enterprise

Priority LOW 30CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-1333.

Summary

A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00437 38th percentileScored 2026-11-07
Fix Fixed Puppet Enterprise (Puppet): 2021.7.3, 2023.1.0Puppet Server (Puppet): 7.11.0, 8.0.0Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PuppetPuppet Enterprise2021.7.1 to before 2021.7.3; 2023.0.0 to before 2023.1.02021.7.3, 2023.1.0Patch availableCNA
PuppetPuppet Server7.9.2 to before 7.11.0; 7.9.2 to before 8.0.07.11.0, 8.0.0Patch availableCNA
  • Puppet Enterprise VendorPuppet Affected 2021.7.1 to before 2021.7.3; 2023.0.0 to before 2023.1.0 Fixed in 2021.7.3, 2023.1.0 Patch available CNA
  • Puppet Server VendorPuppet Affected 7.9.2 to before 7.11.0; 7.9.2 to before 8.0.0 Fixed in 7.11.0, 8.0.0 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:puppet:puppet_enterprise:2021.7.1:*:*:*:*:*:*:*2021.7.1VulnerablePuppet
cpe:2.3:a:puppet:puppet_enterprise:2023.0:*:*:*:*:*:*:*2023.0VulnerablePuppet
cpe:2.3:a:puppet:puppet_server:7.9.2:*:*:*:*:*:*:*7.9.2VulnerablePuppet
  • cpe:2.3:a:puppet:puppet_enterprise:2021.7.1:*:*:*:*:*:*:* Versions 2021.7.1 Vulnerable ·Puppet
  • cpe:2.3:a:puppet:puppet_enterprise:2023.0:*:*:*:*:*:*:* Versions 2023.0 Vulnerable ·Puppet
  • cpe:2.3:a:puppet:puppet_server:7.9.2:*:*:*:*:*:*:* Versions 7.9.2 Vulnerable ·Puppet

Remediation

  • Fix · CNA Puppet Enterprise (Puppet) Fixed in 2021.7.3, 2023.1.0
  • Fix · CNA Puppet Server (Puppet) Fixed in 7.11.0, 8.0.0

Red Hat 1 advisory

  • RHSA-2023:6818 Released 2023-11-08 · Red Hat rating Important
    Satellite 6.14 security and bug fix update
    • Red Hat Satellite 6.14 for RHEL 8 foreman-3.7.0.9-1.el8sat, foreman-cli-3.7.0.9-1.el8sat, foreman-debug-3.7.0.9-1.el8sat +33

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Satellite 6.14 for RHEL 8Fixed RHSA-2023:6818
Not affected: 1 product
  • Red Hat Satellite 6.14 for RHEL 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-1894
  2. 2026-10-03 Alias added: GHSA-x5cv-mqxq-8q96

References

Advisory 1

  • TI-2017-05170 Integer overflow in nginx CVSS 3.1HIGH 7.5
  • TI-2023-02371 A privilege escalation allowing remote code execution was discovered in the orchestration service. CVSS 3.1CRITICAL 9.8
  • TI-2013-01442 The (1) template and (2) inline_template functions in the master server in Puppet before… CVSS 2.0HIGH 9.0
  • TI-2018-04792 Code injection in Puppet Enterprise 2018.1.x prior to 2018.1.1, razor-server and… CVSS 3.0CRITICAL 9.8
  • TI-2016-02330 MCollective 2.7.0 and 2.8.x before 2.8.9, as used in Puppet Enterprise, allows remote… CVSS 3.0CRITICAL 9.8
  • TI-2021-08596 A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP… CVSS 3.1CRITICAL 9.8
See all 88 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences