Security advisory

{
  "id": "528e422f1e5572488f8d4be3f8ca2ace4be844ab479614686688c8975148ffb0",
  "url": "https://osv.dev/vulnerability/CVE-2021-43301",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-43301",
    "summary": "Stack overflow in PJSUA API when calling pjsua_playlist_create. An attacker-controlled 'file_names' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.",
    "evidence": "osv:CVE-2021-43301",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-43301",
      "aliases": [
        "CVE-2021-43299",
        "CVE-2021-43300",
        "CVE-2021-43301",
        "CVE-2021-43302",
        "CVE-2021-43303",
        "GHSA-qcvw-h34v-c7r9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pjsip/pjproject",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "513700f74787009241a11eda125284277f7dfc1c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.11.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.11.1",
            "2.11",
            "2.10"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43301.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:02.184212479Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html",
        "https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html",
        "https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html",
        "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html",
        "https://www.debian.org/security/2022/dsa-5285",
        "https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-43299",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2021-43300",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2021-43301",
        "evidence": "/id"
      },
      {
        "value": "CVE-2021-43302",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2021-43303",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386747,
  "published_at": "2022-02-16T21:15:07.813+00:00"
}