Security advisory

{
  "id": "2045530fe215ddb472e9296b7c5d8a6ed5ef8ed71215a706c628bfbeb886a4cc",
  "url": "https://osv.dev/vulnerability/CVE-2020-27207",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-27207",
    "summary": "Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and sqlite3Strlen30 in sqlite3.c. A remote denial of service attack can be performed. For example, a SQL injection can be used to execute the crafted SQL command sequence. After that, some unexpected RAM data is read.",
    "evidence": "osv:CVE-2020-27207",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-27207",
      "aliases": [
        "CVE-2020-27207"
      ],
      "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/sqlcipher/sqlcipher",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5e991ea68690b8842c47d27bfc7b31e5641b11c4"
                },
                {
                  "fixed": "87b4a1ea57827bbf1177bc6a472590ea2af4b8c3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:zetetic:sqlcipher:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "fixed": "4.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.4.0",
            "v4.3.0",
            "v4.2.0",
            "v4.1.0",
            "v4.0.1",
            "v4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27207.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:59.443124106Z",
      "provider": "osv",
      "references": [
        "https://github.com/sqlcipher/sqlcipher/compare/v4.4.0...v4.4.1",
        "https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842",
        "https://www.telekom.com/resource/blob/612796/9f221708832a465f03585a45d7f59b45/dl-201112-denial-of-serviceen-data.pdf"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-27207",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384121,
  "published_at": "2020-11-26T17:15:11.113+00:00"
}