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FreeBSD : unbound -- mutliple vulnerabilities (a2cb7c31-9c79-11ea-a9c2-d05099c0ae8c)

high Nessus Plugin ID 136852

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

NLNetLabs reports :

This release fixes CVE-2020-12662 and CVE-2020-12663.

Bug Fixes :

- CVE-2020-12662 Unbound can be tricked into amplifying an incoming query into a large number of queries directed to a target.

- CVE-2020-12663 Malformed answers from upstream name servers can be used to make Unbound unresponsive.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?39e1a370

http://www.nessus.org/u?419b6b8d

Plugin Details

Severity: High

ID: 136852

File Name: freebsd_pkg_a2cb7c319c7911eaa9c2d05099c0ae8c.nasl

Version: 1.4

Type: local

Published: 5/26/2020

Updated: 3/8/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-12663

CVSS v3

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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:unbound, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 5/22/2020

Vulnerability Publication Date: 5/19/2020

Reference Information

CVE: CVE-2020-12662, CVE-2020-12663

FreeBSD: SA-20:19.unbound