Improper Input Validation Affecting wordpress package, versions <3.2.1+dfsg-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-WORDPRESS-362987
- published 27 Jun 2012
- disclosed 27 Jun 2012
Introduced: 27 Jun 2012
CVE-2011-4957 Open this link in a new tabHow to fix?
Upgrade Debian:unstable wordpress to version 3.2.1+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2011-4957
- http://www.debian.org/security/2012/dsa-2470
- http://core.trac.wordpress.org/ticket/16892
- http://wordpress.org/news/2011/04/wordpress-3-1-1/
- http://www.openwall.com/lists/oss-security/2012/04/19/17
- http://www.openwall.com/lists/oss-security/2012/04/19/6
- http://secunia.com/advisories/44038
- http://secunia.com/advisories/49138