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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2011-11-08T11:00:00

Updated: 2024-08-07T00:09:18.511Z

Reserved: 2011-11-08T00:00:00

Link: CVE-2011-4415

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2011-11-08T11:55:05.850

Modified: 2024-11-21T01:32:21.373

Link: CVE-2011-4415

cve-icon Redhat

Severity : Low

Publid Date: 2011-11-02T00:00:00Z

Links: CVE-2011-4415 - Bugzilla