National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4415 Detail

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.

Source:  MITRE
Description Last Modified:  11/08/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 1.2 LOW
Vector: (AV:L/AC:H/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 1.9


Access Vector (AV): Local
Access Complexity (AC): High
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
http://www.gossamer-threads.com/lists/apache/dev/403775
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/ Exploit Patch
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html Exploit

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.32:beta:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.34:beta:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.48:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.49:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.50:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.51:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.52:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.53:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.54:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.55:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.56:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.57:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.58:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.59:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.60:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.61:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.63:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.0.64:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:apache:http_server:2.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.13:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.14:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.15:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.16:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.18:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4415
NVD Published Date:
11/08/2011
NVD Last Modified:
07/03/2012