RHEL 7 : bind (RHSA-2020:5011)

medium Nessus Plugin ID 142906
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5011 advisory.

- bind: truncated TSIG response can lead to an assertion failure (CVE-2020-8622)

- bind: remotely triggerable assertion failure in pk11.c (CVE-2020-8623)

- bind: incorrect enforcement of update-policy rules of type subdomain (CVE-2020-8624)

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

Solution

Update the affected packages.

See Also

https://cwe.mitre.org/data/definitions/400.html

https://access.redhat.com/security/cve/CVE-2020-8622

https://bugzilla.redhat.com/1869473

https://access.redhat.com/security/cve/CVE-2020-8623

https://access.redhat.com/security/cve/CVE-2020-8624

https://bugzilla.redhat.com/1869477

https://bugzilla.redhat.com/1869480

https://access.redhat.com/errata/RHSA-2020:5011

Plugin Details

Severity: Medium

ID: 142906

File Name: redhat-RHSA-2020-5011.nasl

Version: 1.9

Type: local

Agent: unix

Published: 11/13/2020

Updated: 10/12/2021

Dependencies: ssh_get_info.nasl, redhat_repos.nasl

Risk Information

CVSS Score Source: CVE-2020-8624

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: cpe:2.3:o:redhat:enterprise_linux:7:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-chroot:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-sdb:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-utils:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-libs-lite:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-license:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-lite-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-pkcs11:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-pkcs11-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-pkcs11-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-pkcs11-utils:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-sdb-chroot:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-export-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:bind-export-libs:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2020

Vulnerability Publication Date: 8/20/2020

Reference Information

CVE: CVE-2020-8624, CVE-2020-8622, CVE-2020-8623

CWE: 400

RHSA: 2020:5011

IAVA: 2020-A-0385-S