Security advisory

{
  "id": "ca9b2aca31fda3c0b63d98d6d19fc44064d7f2ba1e5ed8a251d82ba83928b14b",
  "url": "https://osv.dev/vulnerability/CVE-2019-10053",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-10053",
    "summary": "An issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the function SSHParseBanner is composed only of a \\n character, then the program runs into a heap-based buffer over-read. This occurs because the erroneous search for \\r results in an integer underflow.",
    "evidence": "osv:CVE-2019-10053",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-10053",
      "aliases": [
        "CVE-2019-10053"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/oisf/suricata",
              "type": "GIT",
              "events": [
                {
                  "introduced": "787473ec64550a2448b81aa13064c1f613642c57"
                },
                {
                  "fixed": "14c2b6e445b3e8b5f802c4538397c12bfd3f831d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.1.0"
                      },
                      {
                        "fixed": "4.1.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "suricata-4.1.3",
            "suricata-4.1.2",
            "suricata-4.1.1",
            "suricata-4.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-10053.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:41.782854726Z",
      "provider": "osv",
      "references": [
        "https://lists.openinfosecfoundation.org/pipermail/oisf-announce/",
        "https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-10053",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435212,
  "published_at": "2019-05-13T21:29:01.56+00:00"
}