Quagga is vulnerable to stack-based buffer overflow. This occurs when processing IPv6 Neighbor Discovery messages. An attacker could exploit the flaw in the ‘zebra daemon’ component to crash the application resulting in denial of service (DoS).
rhn.redhat.com/errata/RHSA-2017-0794.html
www.gossamer-threads.com/lists/quagga/users/31952
www.securityfocus.com/bid/93775
access.redhat.com/errata/RHSA-2017:0794
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1386109
bugzilla.redhat.com/show_bug.cgi?id=674862
bugzilla.redhat.com/show_bug.cgi?id=770731
bugzilla.redhat.com/show_bug.cgi?id=839620
bugzilla.redhat.com/show_bug.cgi?id=842308
bugzilla.redhat.com/show_bug.cgi?id=862826
github.com/Quagga/quagga/commit/cfb1fae25f8c092e0d17073eaf7bd428ce1cd546
security.gentoo.org/glsa/201701-48
www.debian.org/security/2016/dsa-3695