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VULNERABILITIES

CVE-2011-4415 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 CVE
http://www.gossamer-threads.com/lists/apache/dev/403775 CVE
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/ CVEExploitPatch
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html CVEExploit
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 [email protected]

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions
apache http server
2.0
2.0.9
2.0.28
2.0.28 beta
2.0.32

CPE

  • cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.32:beta:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.34:beta:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.48:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.49:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.50:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.51:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.52:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.53:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.54:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.55:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.56:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.57:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.58:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.59:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.60:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.61:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.63:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.0.64:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.9:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.10:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.11:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.12:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.13:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.14:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.15:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.16:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.18:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2011-4415
NVD Published Date:
Nov 8, 2011
NVD Last Modified:
Jun 16, 2026
Source:
[email protected]
CVE-2011-4415 Details - Not Deferred