CVE-2011-4957

The make_clickable function in wp-includes/formatting.php in WordPress before 3.1.1 does not properly check URLs before passing them to the PCRE library, which allows remote attackers to cause a denial of service (crash) via a comment with a crafted URL that triggers many recursive calls.

🔗 References (14)

• secalert@redhathttp://core.trac.wordpress.org/ticket/16892
• secalert@redhathttp://secunia.com/advisories/44038
• secalert@redhathttp://secunia.com/advisories/49138
• secalert@redhathttp://wordpress.org/news/2011/04/wordpress-3-1-1/
• secalert@redhathttp://www.debian.org/security/2012/dsa-2470
• secalert@redhathttp://www.openwall.com/lists/oss-security/2012/04/19/17
• secalert@redhathttp://www.openwall.com/lists/oss-security/2012/04/19/6
• af854a3a-2127-422b-91ae-364da2661108http://core.trac.wordpress.org/ticket/16892
• af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/44038
• af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/49138
• af854a3a-2127-422b-91ae-364da2661108http://wordpress.org/news/2011/04/wordpress-3-1-1/
• af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2012/dsa-2470
• af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/04/19/17
• af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/04/19/6