Security advisory

{
  "id": "ef3858d31767e5db9e7fa5e4dd3eaa8da88ce105c9e2f0b19de2727e6bc040f5",
  "url": "https://osv.dev/vulnerability/CVE-2017-7186",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-7186",
    "summary": "libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.",
    "evidence": "osv:CVE-2017-7186",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-7186",
      "aliases": [
        "CVE-2017-7186"
      ],
      "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/pcre2project/pcre2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "08f2a603e8ab886d1074f6ebab787f0ab05f1c2e"
                },
                {
                  "last_affected": "08f2a603e8ab886d1074f6ebab787f0ab05f1c2e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pcre:pcre2:10.23:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.23"
                      },
                      {
                        "last_affected": "10.23"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "10.23",
            "pcre2-10.23"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7186.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.560998452Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:2486",
        "https://bugs.exim.org/show_bug.cgi?id=2052",
        "https://security.gentoo.org/glsa/201710-09",
        "https://security.gentoo.org/glsa/201710-25",
        "https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/",
        "https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date",
        "https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date",
        "https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date",
        "https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:pcre:pcre:8.40:*:*:*:*:*:*:*"
            ],
            "vendor_product": "pcre:pcre",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.40"
                  },
                  {
                    "last_affected": "8.40"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-7186",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435929,
  "published_at": "2017-03-20T00:59:00.19+00:00"
}