Gentoo Linux Security Advisory 201111-6 - A buffer overflow vulnerability in MaraDNS allows remote attackers to execute arbitrary code or cause a Denial of Service. Versions less than 1.4.06 are affected.
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Debian Linux Security Advisory 2196-1 - Witold Baryluk discovered that MaraDNS, a simple security-focused Domain Name Service server, may overflow an internal buffer when handling requests with a large number of labels, causing a server crash and the consequent denial of service.
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