Security advisory

{
  "id": "254fcdacaa971b210996e0449fd6f222891d3a404911eaebe5211dec1b532f6f",
  "url": "https://osv.dev/vulnerability/CVE-2018-6798",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-6798",
    "summary": "An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.",
    "evidence": "osv:CVE-2018-6798",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-6798",
      "aliases": [
        "CVE-2018-6798"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/perl/perl5",
              "type": "GIT",
              "events": [
                {
                  "introduced": "70f63a4c7dba89e8e48b44de7978faae4319e693"
                },
                {
                  "last_affected": "95388f2eb27e74cdbfb715c0097f16aeba4e6e4e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.22"
                      },
                      {
                        "last_affected": "5.26"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.26.0",
            "v5.26.0-RC2",
            "v5.25.11",
            "v5.25.9",
            "v5.25.7",
            "v5.25.5",
            "v5.25.4",
            "v5.25.3",
            "v5.24.0",
            "v5.25.2",
            "v5.25.0",
            "v5.24.0-RC5",
            "v5.24.0-RC4",
            "v5.24.0-RC3",
            "v5.24.0-RC2",
            "v5.24.0-RC1",
            "v5.23.7",
            "v5.23.6",
            "v5.23.4",
            "v5.23.3",
            "if-0.0605",
            "v5.23.2",
            "v5.23.1",
            "v5.23.0",
            "v5.22.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6798.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:30.541361954Z",
      "provider": "osv",
      "references": [
        "https://www.oracle.com/security-alerts/cpujul2020.html",
        "https://access.redhat.com/errata/RHSA-2018:1192",
        "https://rt.perl.org/Public/Bug/Display.html?id=132063",
        "https://security.gentoo.org/glsa/201909-01",
        "https://usn.ubuntu.com/3625-1/",
        "https://www.debian.org/security/2018/dsa-4172"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "17.10"
                  },
                  {
                    "last_affected": "17.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  },
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux_server:7.3:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux_server:7.4:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux_server:7.5:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux_server",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.0"
                  },
                  {
                    "last_affected": "6.0"
                  },
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  },
                  {
                    "introduced": "7.3"
                  },
                  {
                    "last_affected": "7.3"
                  },
                  {
                    "introduced": "7.4"
                  },
                  {
                    "last_affected": "7.4"
                  },
                  {
                    "introduced": "7.5"
                  },
                  {
                    "last_affected": "7.5"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux_workstation",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.0"
                  },
                  {
                    "last_affected": "6.0"
                  },
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-6798",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432593,
  "published_at": "2018-04-17T20:29:00.58+00:00"
}