CVE-2011-4957

NameCVE-2011-4957
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2470-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wordpress (PTS)wheezy (security), wheezy3.6.1+dfsg-1~deb7u10fixed
jessie (security), jessie4.1+dfsg-1+deb8u8fixed
stretch, sid4.5.3+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wordpresssource(unstable)3.2.1+dfsg-1medium
wordpresssourcesqueeze3.3.2+dfsg-1~squeeze1mediumDSA-2470-1

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