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RHEL 8 RHSA-2022-7790-01 Moderate: BIND Cache Poisoning Update

red hat
Calendar Grey November 8, 2022
Dist Redhat Esm H88
Important stability enhancement for BIND in Red Hat Enterprise Linux 8. Information on implications and resolutions provided.
An update for bind is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, the BIND daemon (named) will be restarted automatically.

Summary

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: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)
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 8.7 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory bind Red Hat Enterprise Linux cache poisoning DNS security impact moderate security

References

https://access.redhat.com/security/cve/CVE-2021-25220 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.7_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.36-5.el8.aarch64.rpm bind-chroot-9.11.36-5.el8.aarch64.rpm bind-debuginfo-9.11.36-5.el8.aarch64.rpm bind-debugsource-9.11.36-5.el8.aarch64.rpm bind-devel-9.11.36-5.el8.aarch64.rpm bind-export-libs-debuginfo-9.11.36-5.el8.aarch64.rpm bind-libs-9.11.36-5.el8.aarch64.rpm bind-libs-debuginfo-9.11.36-5.el8.aarch64.rpm bind-libs-lite-9.11.36-5.el8.aarch64.rpm bind-libs-lite-debuginfo-9.11.36-5.el8.aarch64.rpm bind-lite-devel-9.11.36-5.el8.aarch64.rpm bind-pkcs11-9.11.36-5.el8.aarch64.rpm bind-pkcs11-debuginfo-9.11.36-5.el8.aarch64.rpm bind-pkcs11-devel-9.11.36-5.el8.aarch64.rpm bind-pkcs11-libs-9.11.36-5.el8.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.36-5.el8.aarch64.rpm bind-pkcs11-utils-9.11.36-5.el8.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.36-5.el8.aarch64.rpm bind-sdb-9.11.36-5.el8.aarch64.rpm bind-sdb-chroot-9.11.36-5.el8.aarch64.rpm bind-sdb-debuginfo-9.11.36-5.el8.aarch64.rpm bind-utils-9.11.36-5.el8.aarch64.rpm bind-utils-debuginfo-9.11.36-5.el8.aarch64.rpm
noarch: bind-license-9.11.36-5.el8.noarch.rpm python3-bind-9.11.36-5.el8.noarch.rpm
ppc64le: bind-9.11.36-5.el8.ppc64le.rpm bind-chroot-9.11.36-5.el8.ppc64le.rpm bind-debuginfo-9.11.36-5.el8.ppc64le.rpm bind-debugsource-9.11.36-5.el8.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:7790-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7790
Issue date: 2022-11-08

Topic

An update for bind is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory bind Red Hat Enterprise Linux cache poisoning DNS security impact moderate security

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2064512 - CVE-2021-25220 bind: DNS forwarders - cache poisoning vulnerability

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