Security advisory

{
  "id": "e858722f330ca9d2e1204f9dc4712e9202653593ed4974c4fb0ffbd436ed1d92",
  "url": "https://osv.dev/vulnerability/CVE-2020-22218",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-22218",
    "summary": "An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.",
    "evidence": "osv:CVE-2020-22218",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-22218",
      "aliases": [
        "CVE-2020-22218"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libssh2/libssh2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "635caa90787220ac3773c1d5ba11f1236c22eae8"
                },
                {
                  "last_affected": "635caa90787220ac3773c1d5ba11f1236c22eae8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libssh2:libssh2:1.10.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.10.0"
                      },
                      {
                        "last_affected": "1.10.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.10.0",
            "libssh2-1.10.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22218.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:13.521550971Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
        "https://lists.debian.org/debian-lts-announce/2023/09/msg00006.html",
        "https://security.netapp.com/advisory/ntap-20231006-0002/",
        "https://github.com/libssh2/libssh2/pull/476"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-22218",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383477,
  "published_at": "2023-08-22T19:16:19.12+00:00"
}