FreeBSD : powerdns-recursor -- cache pollution (a6860b11-0dee-11eb-94ff-6805ca2fa271)

Medium Nessus Plugin ID 141549

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VPR Score: 3.6

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

PowerDNS Team reports :

CVE-2020-25829: An issue has been found in PowerDNS Recursor where a remote attacker can cause the cached records for a given name to be updated to the 'Bogus' DNSSEC validation state, instead of their actual DNSSEC 'Secure' state, via a DNS ANY query. This results in a denial of service for installations that always validate (dnssec=validate) and for clients requesting validation when on-demand validation is enabled (dnssec=process).

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?fc71f722

http://www.nessus.org/u?9bb6c679

Plugin Details

Severity: Medium

ID: 141549

File Name: freebsd_pkg_a6860b110dee11eb94ff6805ca2fa271.nasl

Version: 1.3

Type: local

Published: 2020/10/20

Updated: 2020/10/26

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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:powerdns-recursor, 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: 2020/10/14

Vulnerability Publication Date: 2020/10/13

Reference Information

CVE: CVE-2020-25829