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puppetserver — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2023-1894

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.

Products
puppetserver
Affected versions
Not specified
Fixed versions
7.9.5-2
CVEs
CVE-2023-1894
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 15:22 UTC · Revision 1

Source evidence

DEBIAN-CVE-2023-1894

core-osv · Original source

Published 4 May 2023, 23:15 UTC

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.

osv:DEBIAN-CVE-2023-1894

puppetserver

Fixed versions: 7.9.5-2

puppetserver

Fixed versions: 7.9.5-2

Complete source record
{
  "id": "86e6096cf689315ef0f5a9d67da95a864cdef0f30132c0f88174c2e1973a7e70",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-1894",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2023-1894",
    "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.",
    "evidence": "osv:DEBIAN-CVE-2023-1894",
    "products": [
      {
        "name": {
          "value": "puppetserver",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.9.5-2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "puppetserver",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.9.5-2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2023-1894",
      "aliases": [
        "DEBIAN-CVE-2023-1894"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7.9.5-2"
                }
              ]
            }
          ],
          "package": {
            "name": "puppetserver",
            "purl": "pkg:deb/debian/puppetserver?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-1894.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7.9.5-2"
                }
              ]
            }
          ],
          "package": {
            "name": "puppetserver",
            "purl": "pkg:deb/debian/puppetserver?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-1894.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T18:00:24.994834864Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-1894"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2023-1894"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-1894",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 455007,
  "published_at": "2023-05-04T23:15:08.763+00:00"
}