Unbound < 1.6.8 Wildcard Synthesized NSEC Records Handling Remote Validation Weakness

medium Nessus Plugin ID 106384
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The remote name server is affected by a remote validation weakness.


According to its self-reported version number, the remote Unbound DNS resolver is affected by a validation weakness when handling wildcard synthesized NSEC records.


Upgrade to Unbound version 1.6.8 or later.

See Also



Plugin Details

Severity: Medium

ID: 106384

File Name: unbound_1_6_8.nasl

Version: 1.5

Type: remote

Family: DNS

Published: 1/26/2018

Updated: 11/8/2019

Dependencies: unbound_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2017-15105


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:unbound:unbound

Required KB Items: Settings/ParanoidReport, unbound/version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/19/2018

Vulnerability Publication Date: 1/19/2018

Reference Information

CVE: CVE-2017-15105