Test ID:	1.3.6.1.4.1.25623.1.0.106119
Category:	Denial of Service
Title:	Knot DNS Server AXFR Response Denial of Service Vulnerability
Summary:	Knot DNS Server is prone to a denial of service vulnerability.
Description:	Summary: Knot DNS Server is prone to a denial of service vulnerability. Vulnerability Insight: Primary DNS servers may cause a denial of service (secondary DNS server crash) via a large AXFR response, and possibly allows IXFR servers to cause a denial of service (IXFR client crash) via a large IXFR response and allows remote authenticated users to cause a denial of service (primary DNS server crash) via a large UPDATE message Vulnerability Impact: An authenticated remote attacker may cause a denial of service condition. Affected Software/OS: Version prior to 2.3.0 Solution: Update to Knot Dns 2.3.0. for updates. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-6171 91678 http://www.securityfocus.com/bid/91678 [dns-operations] 20160704 DNS activities in Japan https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html [oss-security] 20160706 Malicious primary DNS servers can crash secondaries http://www.openwall.com/lists/oss-security/2016/07/06/3 [oss-security] 20160706 Re: Malicious primary DNS servers can crash secondaries http://www.openwall.com/lists/oss-security/2016/07/06/4 https://github.com/sischkg/xfer-limit/blob/master/README.md https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS https://gitlab.labs.nic.cz/labs/knot/issues/464
Copyright	Copyright (C) 2016 Greenbone AG

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