MaraDNS: Denial of service A hash collision vulnerability in MaraDNS allows remote attackers to cause a Denial of Service condition. maradns 2012-02-22 2012-02-22 397431 remote 1.4.09 1.4.09

MaraDNS is a proxy DNS server with permanent caching.

MaraDNS does not properly randomize hash functions to protect against hash collision attacks.

A remote attacker could send many specially crafted DNS recursive queries, possibly resulting in a Denial of Service condition.

There is no known workaround at this time.

All MaraDNS users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/maradns-1.4.09" CVE-2012-0024 ackle ackle