Argument injection vulnerability in Mail/sendmail.php in the Mail package 1.1.14, 1.2.0b2, and possibly other versions for PEAR allows remote attackers to read and write arbitrary files via a crafted $recipients parameter, and possibly other parameters, a different vulnerability than CVE-2009-4023.
lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
pear.php.net/bugs/bug.php?id=16200
secunia.com/advisories/37458
www.debian.org/security/2009/dsa-1938
www.openwall.com/lists/oss-security/2009/11/23/8
www.openwall.com/lists/oss-security/2009/11/28/2
www.securityfocus.com/bid/37395
bugs.gentoo.org/show_bug.cgi?id=294256