ghsa-43r8-mvrp-6q9c
Vulnerability from github
Published
2022-05-17 05:28
Modified
2025-04-11 03:52
Details

The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.

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{
  "affected": [],
  "aliases": [
    "CVE-2011-4415"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2011-11-08T11:55:00Z",
    "severity": "LOW"
  },
  "details": "The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the \"len +=\" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.",
  "id": "GHSA-43r8-mvrp-6q9c",
  "modified": "2025-04-11T03:52:44Z",
  "published": "2022-05-17T05:28:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-4415"
    },
    {
      "type": "WEB",
      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041"
    },
    {
      "type": "WEB",
      "url": "http://www.gossamer-threads.com/lists/apache/dev/403775"
    },
    {
      "type": "WEB",
      "url": "http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow"
    },
    {
      "type": "WEB",
      "url": "http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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