Security advisory

{
  "id": "83f4bd2ff975fb2b7d98c0dbe12f28161560ca07c2488cd851858f0d51ef9939",
  "url": "https://osv.dev/vulnerability/CVE-2018-12558",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-12558",
    "summary": "The parse() method in the Email::Address module through 1.909 for Perl is vulnerable to Algorithmic complexity on specially prepared input, leading to Denial of Service. Prepared special input that caused this problem contained 30 form-field characters (\"\\f\").",
    "evidence": "osv:CVE-2018-12558",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-12558",
      "aliases": [
        "CVE-2018-12558"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/Perl-Email-Project/Email-Address",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3607a2d3de244ac087593e077ab2faf7a1a1ff24"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:email\\:\\:address_module_project:email\\:\\:address:*:*:*:*:*:perl:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.909"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.909",
            "1.908",
            "1.907",
            "1.906",
            "1.905",
            "1.904",
            "1.903",
            "1.902",
            "1.901",
            "1.900",
            "1.899",
            "1.898",
            "1.897",
            "1.896",
            "1.895",
            "1.894",
            "1.893",
            "1.892",
            "1.889"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12558.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/perl-email-project/email-address",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3607a2d3de244ac087593e077ab2faf7a1a1ff24"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:email\\:\\:address_module_project:email\\:\\:address:*:*:*:*:*:perl:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.909"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.909",
            "1.908",
            "1.907",
            "1.906",
            "1.905",
            "1.904",
            "1.903",
            "1.902",
            "1.901",
            "1.900",
            "1.899",
            "1.898",
            "1.897",
            "1.896",
            "1.895",
            "1.894",
            "1.893",
            "1.892",
            "1.889"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12558.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.811293361Z",
      "provider": "osv",
      "references": [
        "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901873"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-12558",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434308,
  "published_at": "2018-06-20T14:29:00.273+00:00"
}