udev before 1.4.1 does not verify whether a NETLINK message originates from kernel space, which allows local users to gain privileges by sending a NETLINK message from user space.
git.kernel.org/?p=linux/hotplug/udev.git%3Ba=commitdiff%3Bh=e2b362d9f23d4c63018709ab5f81a02f72b91e75
git.kernel.org/?p=linux/hotplug/udev.git%3Ba=commitdiff%3Bh=e86a923d508c2aed371cdd958ce82489cf2ab615
kb.juniper.net/InfoCenter/index?page=content&id=JSA10691
kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
lists.opensuse.org/opensuse-security-announce/2009-04/msg00006.html
lists.opensuse.org/opensuse-security-announce/2009-04/msg00012.html
lists.vmware.com/pipermail/security-announce/2009/000060.html
secunia.com/advisories/34731
secunia.com/advisories/34750
secunia.com/advisories/34753
secunia.com/advisories/34771
secunia.com/advisories/34776
secunia.com/advisories/34785
secunia.com/advisories/34787
secunia.com/advisories/34801
secunia.com/advisories/35766
slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.446399
wiki.rpath.com/Advisories:rPSA-2009-0063
wiki.rpath.com/wiki/Advisories:rPSA-2009-0063
www.debian.org/security/2009/dsa-1772
www.gentoo.org/security/en/glsa/glsa-200904-18.xml
www.mandriva.com/security/advisories?name=MDVSA-2009:103
www.mandriva.com/security/advisories?name=MDVSA-2009:104
www.redhat.com/support/errata/RHSA-2009-0427.html
www.securityfocus.com/archive/1/502752/100/0/threaded
www.securityfocus.com/archive/1/504849/100/0/threaded
www.securityfocus.com/bid/34536
www.securitytracker.com/id?1022067
www.ubuntu.com/usn/usn-758-1
www.vmware.com/security/advisories/VMSA-2009-0009.html
www.vupen.com/english/advisories/2009/1053
www.vupen.com/english/advisories/2009/1865
bugzilla.redhat.com/show_bug.cgi?id=495051
launchpad.net/bugs/cve/2009-1185
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10925
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5975
www.exploit-db.com/exploits/8572
www.redhat.com/archives/fedora-package-announce/2009-April/msg00462.html
www.redhat.com/archives/fedora-package-announce/2009-April/msg00463.html