Knot DNS 1.6.x < 1.6.6 / 2.0.x < 2.0.2 NAPTR Record DoS
medium Nessus Plugin ID 87965
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Synopsis
The remote DNS server is affected by a denial of service vulnerability.Description
The Knot DNS server running on the remote host is version 1.6.x prior to 1.6.6 or 2.0.x prior to 2.0.2. It is, therefore, affected by an out-of-bounds read error that occurs when parsing malformed NAPTR records. An unauthenticated, remote attacker can exploit this to disclose memory contents or crash the knotd daemon, resulting in a denial of service.Solution
Upgrade to Knot DNS version 1.6.6 / 2.0.2 or later.See Also
https://gitlab.labs.nic.cz/users/sign_in
https://gitlab.labs.nic.cz/users/sign_in
Plugin Details
Severity: Medium
ID: 87965
File Name: knot_dns_2_0_2.nasl
Version: 1.5
Type: remote
Family: DNS
Published: 1/18/2016
Updated: 11/15/2018
Dependencies: knot_dns_version.nasl
Configuration: Enable paranoid mode
Risk Information
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: x-cpe:/a:cz.nic:knot_dns
Required KB Items: knot_dns/proto, Settings/ParanoidReport
Patch Publication Date: 11/24/2015
Vulnerability Publication Date: 11/24/2015