{"id":"UBUNTU-CVE-2011-2393","details":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD, NetBSD, and possibly other BSD-based operating systems allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, a similar vulnerability to CVE-2010-4670.","modified":"2025-07-16T07:17:00.246893Z","published":"2012-02-02T17:55:00Z","withdrawn":"2025-07-18T16:42:42Z","upstream":["CVE-2011-2393"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2011-2393"},{"type":"REPORT","url":"http://seclists.org/fulldisclosure/2011/Apr/86"},{"type":"REPORT","url":"http://www.mh-sec.de/downloads/mh-RA_flooding_CVE-2010-multiple.txt"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2011-2393"}],"affected":[{"package":{"name":"linux","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/linux@3.11.0-12.19?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.0-12.19"}]}],"ecosystem_specific":{"availability":"No subscription 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