Detections
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RHEL 7 : bind (RHSA-2020:5011)
medium Nessus Plugin ID 142906
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Synopsis
The remote Red Hat host is missing one or more security updates for bind.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.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.
Security Fix(es):
* 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.
Bug Fix(es):
* BIND stops DNSKEY lookup in get_dst_key() when a key with unsupported algorithm is found first [RHEL7] (BZ#1884530)
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 RHEL bind package based on the guidance in RHSA-2020:5011.See Also
http://www.nessus.org/u?0aea0470
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/errata/RHSA-2020:5011
https://bugzilla.redhat.com/show_bug.cgi?id=1869473
https://bugzilla.redhat.com/show_bug.cgi?id=1869477
Plugin Details
Severity: Medium
ID: 142906
File Name: redhat-RHSA-2020-5011.nasl
Version: 1.13
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/13/2020
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:bind-sdb, p-cpe:/a:redhat:enterprise_linux:bind-utils, 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: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, 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: 11/10/2020
Vulnerability Publication Date: 8/20/2020