GSD-2022-37797

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition.
Aliases
Aliases
CVE-2022-37797
To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-37797",
    "description": "In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition.",
    "id": "GSD-2022-37797",
    "references": [
      "https://www.debian.org/security/2022/dsa-5243",
      "https://advisories.mageia.org/CVE-2022-37797.html",
      "https://www.suse.com/security/cve/CVE-2022-37797.html",
      "https://security.archlinux.org/CVE-2022-37797"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-37797"
      ],
      "details": "In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition.",
      "id": "GSD-2022-37797",
      "modified": "2023-12-13T01:19:13.661113Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2022-37797",
        "STATE": "PUBLIC"
      },
      "affects": {
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              "product": {
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                    "version": {
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                          "version_value": "n/a"
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            "value": "In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition."
          }
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                "value": "n/a"
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      "references": {
        "reference_data": [
          {
            "name": "https://redmine.lighttpd.net/issues/3165",
            "refsource": "MISC",
            "url": "https://redmine.lighttpd.net/issues/3165"
          },
          {
            "name": "DSA-5243",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5243"
          },
          {
            "name": "[debian-lts-announce] 20221003 [SECURITY] [DLA 3133-1] lighttpd security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html"
          },
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            "name": "GLSA-202210-12",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202210-12"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:lighttpd:lighttpd:1.4.65:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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            "cpe_match": [
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          "ID": "CVE-2022-37797"
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        "data_type": "CVE",
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        "description": {
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              "value": "In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-476"
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              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://redmine.lighttpd.net/issues/3165",
              "refsource": "MISC",
              "tags": [
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            },
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        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-12-03T01:11Z",
      "publishedDate": "2022-09-12T15:15Z"
    }
  }
}


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