cve-2011-4415
Vulnerability from cvelistv5
Published
2011-11-08 11:00
Modified
2024-08-07 00:09
Severity ?
Summary
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.
References
cve@mitre.orghttp://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
cve@mitre.orghttp://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
cve@mitre.orghttp://www.gossamer-threads.com/lists/apache/dev/403775
cve@mitre.orghttp://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/Exploit, Patch
cve@mitre.orghttp://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.htmlExploit
af854a3a-2127-422b-91ae-364da2661108http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
af854a3a-2127-422b-91ae-364da2661108http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
af854a3a-2127-422b-91ae-364da2661108http://www.gossamer-threads.com/lists/apache/dev/403775
af854a3a-2127-422b-91ae-364da2661108http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.htmlExploit
Impacted products
Vendor Product Version
Show details on NVD website

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      "id": "CVE-2011-4415",
      "lastModified": "2024-11-21T01:32:21.373",
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      "published": "2011-11-08T11:55:05.850",
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2011-4415\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2011-11-08T11:55:05.850\",\"lastModified\":\"2024-11-21T01:32:21.373\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n ap_pregsub en server/util.c en el servidor HTTP Apache v2.0.x hasta la 2.0.64 y la v2.2.x hasta la v2.2.21, cuando el m\u00f3dulo mod_setenvif est\u00e1 activado, no limita el tama\u00f1o de los valores de las variables de entorno, lo que permite a usuarios locales causar una denegaci\u00f3n de servicio (consumo de memoria o puntero a NULL) a trav\u00e9s de un archivo de tipo .htaccess que incluye una directiva SetEnvIf modificada, junto con un encabezado de solicitud HTTP manipulado, relacionado con (1) la declarci\u00f3n \\\"len + =\\\" y (2) con la llamada a la funcion apr_pcalloc, una vulnerabilidad diferente a 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  }
}


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