Security advisory

{
  "id": "2574daf80aa9663da096b968077f9a4ebc83d508bc69607d3616355ca78200ee",
  "url": "https://osv.dev/vulnerability/CVE-2021-27506",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-27506",
    "summary": "The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.",
    "evidence": "osv:CVE-2021-27506",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-27506",
      "aliases": [
        "CVE-2021-27506"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cisco-talos/clamav",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e7f5f53737f51f3b8395c12b1f804dc6c2181169"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.103.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "clamav-0.103.1",
            "clamav-0.103.0",
            "clamav-0.103.0-rc2",
            "clamav-0.103.0-rc",
            "clamav-0.102.0",
            "clamav-0.101.0",
            "clamav-0.97",
            "clamav-0.97rc",
            "clamav-0.96.5",
            "clamav-0.96.4",
            "clamav-0.96.3",
            "clamav-0.96.2",
            "clamav-0.96",
            "clamav-0.96rc2",
            "clamav-0.96rc1",
            "merge-llvm-97877",
            "r5076"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27506.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:23.072035897Z",
      "provider": "osv",
      "references": [
        "https://advisories.stormshield.eu/2021-003/",
        "https://blog.clamav.net/2021/02/clamav-01031-patch-release.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:netasq_project:netasq:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "netasq_project:netasq",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.1.0"
                  },
                  {
                    "last_affected": "9.1.11"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "stormshield:stormshield_network_security",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.0"
                  },
                  {
                    "last_affected": "4.2.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-27506",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430822,
  "published_at": "2021-03-19T15:15:12.65+00:00"
}