Vulnerability · Published May 4, 2023 · Assigned by puppet
CVE-2023-1894
Medium 5.3
In plain English
A medium-severity security flaw in Puppet Enterprise from Puppet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | puppetserver | 7.9.5-2 | DEBIAN-CVE-2023-1894 |
| Debian:13 | puppetserver | 7.9.5-2 | DEBIAN-CVE-2023-1894 |
| Ubuntu:22.04:LTS | puppet | no fix listed | UBUNTU-CVE-2023-1894 |
| Ubuntu:24.04:LTS | puppetserver | no fix listed | UBUNTU-CVE-2023-1894 |
| Ubuntu:25.10 | puppetserver | no fix listed | UBUNTU-CVE-2023-1894 |
| Ubuntu:26.04:LTS | puppetserver | no fix listed | UBUNTU-CVE-2023-1894 |
| Ubuntu:26.10 | puppetserver | no fix listed | UBUNTU-CVE-2023-1894 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Puppet | Puppet Enterprise | 2021.7.1 – before 2021.7.32023.0.0 – before 2023.1.0 |
| Puppet | Puppet Server | 7.9.2 – before 7.11.07.9.2 – before 8.0.0 |