The sbni_ioctl function in drivers/net/wan/sbni.c in the wan subsystem in the Linux kernel 2.6.26.3 does not check for the CAP_NET_ADMIN capability before processing a (1) SIOCDEVRESINSTATS, (2) SIOCDEVSHWSTATE, (3) SIOCDEVENSLAVE, or (4) SIOCDEVEMANSIPATE ioctl request, which allows local users to bypass intended capability restrictions.
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00693.html
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00689.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9364
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5671
http://www.vupen.com/english/advisories/2008/2714
http://www.vupen.com/english/advisories/2008/2511
http://www.ubuntu.com/usn/usn-659-1
http://www.securitytracker.com/id?1020969
http://www.redhat.com/support/errata/RHSA-2008-0973.html
http://www.redhat.com/support/errata/RHSA-2008-0787.html
http://www.openwall.com/lists/oss-security/2008/08/29/2
http://www.mandriva.com/security/advisories?name=MDVSA-2008:223
http://www.mandriva.com/security/advisories?name=MDVSA-2008:220
http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.7
http://www.debian.org/security/2008/dsa-1655
http://www.debian.org/security/2008/dsa-1653
http://secunia.com/advisories/33280
http://secunia.com/advisories/33201
http://secunia.com/advisories/32759
http://secunia.com/advisories/32393
http://secunia.com/advisories/32386
http://secunia.com/advisories/32370
http://secunia.com/advisories/32356
http://secunia.com/advisories/32315
http://secunia.com/advisories/32237
http://secunia.com/advisories/32103
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00000.html