Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd

{
  "id": "d00a2a33a3f6fb4b179504ed4e4959db8a70c4872bc9644c10c0c67236857cd1",
  "url": "https://osv.dev/vulnerability/CVE-2023-49275",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd",
    "summary": "Wazuh is a free and open source platform used for threat prevention, detection, and response. A NULL pointer dereference was detected during fuzzing of the analysis engine, allowing malicious clients to DoS the analysis engine. The bug occurs when `analysisd` receives a syscollector message with the `hotfix` `msg_type` but lacking a `timestamp`. It uses `cJSON_GetObjectItem()` to get the `timestamp` object item and dereferences it without checking for a `NULL` value. A malicious client can DoS the analysis engine. This vulnerability is fixed in 4.7.1.",
    "evidence": "osv:CVE-2023-49275",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-49275",
      "aliases": [
        "CVE-2023-49275",
        "GHSA-4mq7-w9r6-9975"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wazuh/wazuh",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1dfef3696c85a19283be96b2c60218888a130a1c"
                },
                {
                  "fixed": "5a0abd9df1faa5f4b93848cebed90c39f76d6c64"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.2.0"
                      },
                      {
                        "fixed": "4.7.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.2.0"
                      },
                      {
                        "fixed": "4.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.13.1",
            "v3.13.0",
            "v3.12.0",
            "v3.8.0",
            "v3.7.0",
            "v3.6.1",
            "v3.6.0",
            "v3.5.0",
            "v3.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49275.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.149930666Z",
      "provider": "osv",
      "references": [
        "https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1573",
        "https://github.com/wazuh/wazuh/blob/e1d5231b31b68a75f3b8b33f833155b362411078/src/analysisd/decoders/syscollector.c#L1578",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49275.json",
        "https://github.com/wazuh/wazuh/security/advisories/GHSA-4mq7-w9r6-9975",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-49275"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49275.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-49275",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518337,
  "published_at": "2024-04-19T14:24:25.343+00:00"
}