Detections
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RHEL 8 : bind (RHSA-2020:4500)
medium Nessus Plugin ID 142448
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4500 advisory.The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols.
BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
The following packages have been upgraded to a later upstream version: bind (9.11.20). (BZ#1818785)
Security Fix(es):
* bind: asterisk character in an empty non-terminal can cause an assertion failure in rbtdb.c (CVE-2020-8619)
* 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)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://bugzilla.redhat.com/show_bug.cgi?id=1848169
https://bugzilla.redhat.com/show_bug.cgi?id=1859454
https://bugzilla.redhat.com/show_bug.cgi?id=1869473
https://bugzilla.redhat.com/show_bug.cgi?id=1869477
https://bugzilla.redhat.com/show_bug.cgi?id=1869480
http://www.nessus.org/u?44b830f6
http://www.nessus.org/u?f825e757
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/errata/RHSA-2020:4500
https://bugzilla.redhat.com/show_bug.cgi?id=1693395
https://bugzilla.redhat.com/show_bug.cgi?id=1749505
https://bugzilla.redhat.com/show_bug.cgi?id=1814158
Plugin Details
Severity: Medium
ID: 142448
File Name: redhat-RHSA-2020-4500.nasl
Version: 1.11
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/4/2020
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
Vendor
Vendor Severity: Moderate
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
CVSS Score Source: CVE-2020-8624
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: p-cpe:/a:redhat:enterprise_linux:bind-libs, p-cpe:/a:redhat:enterprise_linux:bind-sdb-chroot, p-cpe:/a:redhat:enterprise_linux:bind-libs-lite, p-cpe:/a:redhat:enterprise_linux:bind-utils, p-cpe:/a:redhat:enterprise_linux:bind-sdb, p-cpe:/a:redhat:enterprise_linux:bind-chroot, p-cpe:/a:redhat:enterprise_linux:bind-pkcs11-libs, p-cpe:/a:redhat:enterprise_linux:bind-license, p-cpe:/a:redhat:enterprise_linux:python3-bind, p-cpe:/a:redhat:enterprise_linux:bind-export-devel, p-cpe:/a:redhat:enterprise_linux:bind-pkcs11, p-cpe:/a:redhat:enterprise_linux:bind-pkcs11-utils, p-cpe:/a:redhat:enterprise_linux:bind-lite-devel, p-cpe:/a:redhat:enterprise_linux:bind-export-libs, p-cpe:/a:redhat:enterprise_linux:bind-devel, p-cpe:/a:redhat:enterprise_linux:bind-pkcs11-devel, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:bind
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: 11/4/2020
Vulnerability Publication Date: 6/17/2020
Reference Information
CVE: CVE-2020-8619, CVE-2020-8622, CVE-2020-8623, CVE-2020-8624