The escapeshellcmd API function in PHP before 5.2.6 has unknown impact and context-dependent attack vectors related to "incomplete multibyte chars."
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00779.html
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00773.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10256
https://issues.rpath.com/browse/RPL-2503
http://www.vupen.com/english/advisories/2008/2268
http://www.vupen.com/english/advisories/2008/1412
http://www.ubuntu.com/usn/usn-628-1
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.488951
http://www.securityfocus.com/bid/29009
http://www.securityfocus.com/archive/1/492671/100/0/threaded
http://www.securityfocus.com/archive/1/492535/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2008-0582.html
http://www.redhat.com/support/errata/RHSA-2008-0546.html
http://www.redhat.com/support/errata/RHSA-2008-0545.html
http://www.redhat.com/support/errata/RHSA-2008-0544.html
http://www.redhat.com/support/errata/RHSA-2008-0505.html
http://www.php.net/ChangeLog-5.php
http://www.openwall.com/lists/oss-security/2008/05/02/2
http://www.mandriva.com/security/advisories?name=MDVSA-2008:128
http://www.mandriva.com/security/advisories?name=MDVSA-2008:127
http://www.mandriva.com/security/advisories?name=MDVSA-2008:126
http://www.mandriva.com/security/advisories?name=MDVSA-2008:125
http://www.debian.org/security/2008/dsa-1578
http://www.debian.org/security/2008/dsa-1572
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0178
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0176
http://security.gentoo.org/glsa/glsa-200811-05.xml
http://secunia.com/advisories/32746
http://secunia.com/advisories/31326
http://secunia.com/advisories/31200
http://secunia.com/advisories/31124
http://secunia.com/advisories/31119
http://secunia.com/advisories/30967
http://secunia.com/advisories/30828
http://secunia.com/advisories/30757
http://secunia.com/advisories/30411
http://secunia.com/advisories/30345
http://secunia.com/advisories/30288
http://secunia.com/advisories/30158
http://secunia.com/advisories/30083
http://secunia.com/advisories/30048
http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00001.html
http://lists.apple.com/archives/security-announce//2008/Jul/msg00003.html