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ISC BIND 9.16.19 / 9.16.19-S1 / 9.17.16 Assertion Failure (CVE-2021-25218)

high Nessus Plugin ID 152682

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Synopsis

The remote name server is affected by an assertion failure vulnerability vulnerability.

Description

The version of ISC BIND installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2021-25218 advisory.

 - In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition. (CVE-2021-25218)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to ISC BIND version 9.16.20 / 9.17.17 or later.

See Also

https://kb.isc.org/v1/docs/CVE-2021-25218

Plugin Details

Severity: High

ID: 152682

File Name: bind9_91717.nasl

Version: 1.6

Type: remote

Family: DNS

Published: 8/19/2021

Updated: 12/4/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-25218

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: Settings/ParanoidReport, bind/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/18/2021

Vulnerability Publication Date: 8/18/2021

Reference Information

CVE: CVE-2021-25218

IAVA: 2021-A-0391-S