CVE-2011-4957

Name	CVE-2011-4957
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2470-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wordpress (PTS)	bullseye, bullseye (security)	5.7.11+dfsg1-0+deb11u1	fixed
	bookworm, bookworm (security)	6.1.6+dfsg1-0+deb12u1	fixed
	sid, trixie	6.6.1+dfsg1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
wordpress	source	squeeze	3.3.2+dfsg-1~squeeze1		DSA-2470-1
wordpress	source	(unstable)	3.2.1+dfsg-1