Ubuntu has released updated packages to address multiple vulnerabilities identified in Quagga. These flaws could be exploited by attackers to cause a denial of service.
The first issue is due to an error in the ripd daemon that does not properly handle malformed RIPv1 requests, which could be exploited by attackers to cause a denial of service.
The second flaw is due to an error in ripd that accepts unauthenticated RIPv1 response packets if RIPv2 was configured to require authentication and both protocols are allowed, which could be exploited by remote attackers to inject arbitrary routes.
The third vulnerability is due to an error when handling malformed and invalid "sh ip bgp" commands, which could be exploited by attackers to cause a denial of service.
ChangeLog
2006-05-16 : Initial release
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