net/bridge/netfilter/ebtables.c in the ebtables module in the netfilter framework in the Linux kernel before 2.6.33-rc4 does not require the CAP_NET_ADMIN capability for setting or modifying rules, which allows local users to bypass intended access restrictions and configure arbitrary network-traffic filtering via a modified ebtables application.
https://rhn.redhat.com/errata/RHSA-2010-0146.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9630
https://exchange.xforce.ibmcloud.com/vulnerabilities/55602
https://bugzilla.redhat.com/show_bug.cgi?id=555238
http://www.vupen.com/english/advisories/2010/0109
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
http://www.securityfocus.com/bid/37762
http://www.securityfocus.com/archive/1/516397/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2010-0161.html
http://www.redhat.com/support/errata/RHSA-2010-0147.html
http://www.openwall.com/lists/oss-security/2010/01/14/3
http://www.openwall.com/lists/oss-security/2010/01/14/1
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.33-rc4
http://www.debian.org/security/2010/dsa-2005
http://www.debian.org/security/2010/dsa-1996
http://secunia.com/advisories/43315
http://secunia.com/advisories/39033
http://secunia.com/advisories/38779
http://secunia.com/advisories/38492
http://secunia.com/advisories/38333
http://secunia.com/advisories/38296
http://secunia.com/advisories/38133
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00008.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-January/034250.html