quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removalReferenceshttps://security-tracker.debian.org/tracker/CVE-2012-5521https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5521https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-5521https://access.redhat.com/security/cve/cve-2012-5521https://exchange.xforce.ibmcloud.com/vulnerabilities/80096http://www.openwall.com/lists/oss-security/2012/11/13/14http://www.securityfocus.com/bid/56530
