Quagga is a routing software suite, providing
implementations of OSPFv2, OSPFv3, RIPv1 and v2, RIPng, IS-IS,
and BGP4+ for Unix platforms, particularly FreeBSD,
Linux, and NetBSD.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release provides security fixes which address assorted vulnerabilities in bgpd, ospfd, and ospf6d (CVE-2011-3323, CVE-2011-3324, CVE-2011-3325, CVE-2011-3326, and CVE-2011-3327).