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=========================================================== Ubuntu Security Notice USN-284-1 May 15, 2006 quagga vulnerabilities CVE-2006-2223, CVE-2006-2224, CVE-2006-2276 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.04 (Hoary Hedgehog) Ubuntu 5.10 (Breezy Badger) The following packages are affected: quagga The problem can be corrected by upgrading the affected package to version 0.97.3-1ubuntu1.1 (for Ubuntu 5.04), or 0.99.1-1ubuntu1.1 (for Ubuntu 5.10). In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Paul Jakma discovered that Quagga's ripd daemon did not properly handle authentication of RIPv1 requests. If the RIPv1 protocol had been disabled, or authentication for RIPv2 had been enabled, ripd still replied to RIPv1 requests, which could lead to information disclosure. (CVE-2006-2223) Paul Jakma also noticed that ripd accepted unauthenticated RIPv1 response packets if RIPv2 was configured to require authentication and both protocols were allowed. A remote attacker could exploit this to inject arbitrary routes. (CVE-2006-2224) Fredrik Widell discovered that Quagga did not properly handle certain invalid 'sh ip bgp' commands. By sending special commands to Quagga, a remote attacker with telnet access to the Quagga server could exploit this to trigger an endless loop in the daemon (Denial of Service). (CVE-2006-2276)