Knot DNS 1.5.2 Incremental Zone Transfer (IXFR) DoS

high Nessus Plugin ID 78890
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The remote DNS server is potentially affected by a denial of service vulnerability.


The remote host is running Knot DNS version 1.5.2. It is, therefore, affected by an error that could allow certain Incremental Zone Transfer (IXFR) messages to crash the server.


Update to version 1.5.3 or later.

See Also

Plugin Details

Severity: High

ID: 78890

File Name: knot_dns_1_5_3.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 11/6/2014

Updated: 11/26/2019

Dependencies: knot_dns_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2014-0486


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: x-cpe:/a:cz.nic:knot_dns

Required KB Items: knot_dns/proto, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2014

Vulnerability Publication Date: 9/15/2014

Reference Information

CVE: CVE-2014-0486

BID: 70097