An input sanitation flaw in Gentoo Linux ~ Security Advisory

Gentoo Linux published Security Advisory for phpDocumentor Vulnerability.  phpDocumentor bundles Smarty which contains an input sanitation flaw, allowing attackers to call arbitrary PHP functions.

The phpDocumentor package provides automatic documenting of PHP API directly from the source. phpDocumentor bundles Smarty with the modifier.regex_replace.php plug-in which does not properly sanitize input related to the ASCII NUL character in a search string. A remote attacker could call arbitrary PHP functions via templates.

Gentoo recommends all phpDocumentor users to upgrade to the latest stable version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=dev-php/PEAR-PhpDocumentor-1.4.3-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since February 12, 2011. It is likely that your system is
already no longer affected by this issue.