Security advisory

{
  "id": "a07b6910f9d900f0ea56326e2eed0a68f602ebb18b19ffcb815ad3ed471ed70b",
  "url": "https://osv.dev/vulnerability/CVE-2017-16875",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-16875",
    "summary": "An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. The ioqueue component may issue a double key unregistration after an attacker initiates a socket connection with specific settings and sequences. Such double key unregistration will trigger an integer overflow, which may cause ioqueue backends to reject future key registrations.",
    "evidence": "osv:CVE-2017-16875",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-16875",
      "aliases": [
        "CVE-2017-16875"
      ],
      "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/pjsip/pjproject",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ddf5bf08c48b9d8ef898f25c932d0652e9d36a52"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-16875.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:39.259206213Z",
      "provider": "osv",
      "references": [
        "https://trac.pjsip.org/repos/milestone/release-2.7.1",
        "https://trac.pjsip.org/repos/ticket/2055",
        "https://www.debian.org/security/2018/dsa-4170"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-16875",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434621,
  "published_at": "2017-11-17T16:29:00.19+00:00"
}