The session_start function in ext/session in PHP 4.x up to 4.4.7 and 5.x up to 5.2.3 allows remote attackers to insert arbitrary attributes into the session cookie via special characters in a cookie that is obtained from (1) PATH_INFO, (2) the session_id function, and (3) the session_start function, which are not encoded or filtered when the new session cookie is generated, a related issue to CVE-2006-0207.
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00354.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9792
https://launchpad.net/bugs/173043
https://issues.rpath.com/browse/RPL-1693
http://www.vupen.com/english/advisories/2008/0924/references
http://www.ubuntu.com/usn/usn-549-2
http://www.securityfocus.com/bid/24268
http://www.redhat.com/support/errata/RHSA-2007-0891.html
http://www.redhat.com/support/errata/RHSA-2007-0890.html
http://www.redhat.com/support/errata/RHSA-2007-0888.html
http://www.php-security.org/MOPB/PMOPB-46-2007.html
http://www.novell.com/linux/security/advisories/2007_15_sr.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:187
http://www.debian.org/security/2008/dsa-1578
http://www.debian.org/security/2008/dsa-1444
http://support.avaya.com/elmodocs2/security/ASA-2007-449.htm
http://secunia.com/advisories/30288
http://secunia.com/advisories/29420
http://secunia.com/advisories/28249
http://secunia.com/advisories/27864
http://secunia.com/advisories/27545
http://secunia.com/advisories/27377
http://secunia.com/advisories/27351
http://secunia.com/advisories/26967
http://secunia.com/advisories/26930
http://secunia.com/advisories/26895
http://secunia.com/advisories/26871
http://rhn.redhat.com/errata/RHSA-2007-0889.html
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html