'The fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library 1.4.3 and 1.4.4, and the Apache HTTP Server 2.2.18, allows remote attackers to cause a denial of service (infinite loop) via a URI that does not match unspecified types of wildcard patterns, as demonstrated by attacks against mod_autoindex in httpd when a /*/WEB-INF/ configuration pattern is used. NOTE: this issue exists because of an incorrect fix for CVE-2011-0419.'
This issue was resolved in a backported fix. Current up to date versions not affected.
This issue was resolved in apr-1.2.7-11.el5_6.5 (ClearOS 5.x) and apr-1.3.9-3.el6_1.2 (ClearOS 6.x). Current versions exceed this minor release.
To validate that you are running apr-1.2.7-11.el5_6.5 (ClearOS 5.x) and apr-1.3.9-3.el6_1.2 (ClearOS 6.x) or later, run the following:
rpm -qi apr
If you need to update, run the following: