Security advisory

{
  "id": "11093332bed9d2c23777a608c2f7aa026cf00d13c1f2ea5080cd06ec4b43bf2e",
  "url": "https://osv.dev/vulnerability/CVE-2021-36513",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-36513",
    "summary": "An issue was discovered in function sofia_handle_sip_i_notify in sofia.c in SignalWire freeswitch before 1.10.6, may allow attackers to view sensitive information due to an uninitialized value.",
    "evidence": "osv:CVE-2021-36513",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-36513",
      "aliases": [
        "CVE-2021-36513"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/signalwire/freeswitch",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1ff9d0a60e00c887d653805b3c6c7aa93443a05b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:signalwire:freeswitch:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.10.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1ff9d0a60e00c887d653805b3c6c7aa93443a05b"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.10.6"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.10.5",
            "v1.10.4",
            "v1.10.3",
            "v1.10.2",
            "v1.10.1",
            "v1.10.0",
            "v1.6.0",
            "v1.5.final",
            "v1.5.14",
            "v1.5.13",
            "v1.5.12",
            "v1.5.10",
            "v.15.9",
            "v1.5.8",
            "v1.5.5",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.3.17-final",
            "v1.3.16",
            "v1.3.15",
            "v1.3.14",
            "v1.3.13",
            "v1.3.12",
            "v.1.3.12",
            "v0.0.1",
            "v1.3.11",
            "v1.3.10",
            "v1.3.9",
            "v1.3.8",
            "v1.3.7",
            "v1.3.6",
            "v1.3.5",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2-rc2",
            "v1.2-rc1",
            "git2svn-syncpoint-master"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36513.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:48.012240415Z",
      "provider": "osv",
      "references": [
        "https://github.com/signalwire/freeswitch/releases/tag/v1.10.6",
        "https://newreleases.io/project/github/signalwire/freeswitch/release/v1.10.6",
        "https://github.com/signalwire/freeswitch/issues/1245"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-36513",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386157,
  "published_at": "2021-10-18T17:15:07.913+00:00"
}