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Red Hat Enterprise Linux 8 RHSA-2022:2092-01 Moderate: Bind DNS Bug Fix

red hat
Calendar Grey May 10, 2022
Dist Redhat Esm H88
Discover the latest Red Hat advisory regarding bind, which is a moderate security update aimed at resolving performance-related concerns within the resolver.
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.
The following packages have been upgraded to a later upstream version: bind (9.11.36). (BZ#2013993)
Security Fix(es):
* bind: Lame cache can be abused to severely degrade resolver performance (CVE-2021-25219)
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 8.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux moderate impact DNS update resolver performance bind bug fix

References

https://access.redhat.com/security/cve/CVE-2021-25219 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.36-3.el8.aarch64.rpm bind-chroot-9.11.36-3.el8.aarch64.rpm bind-debuginfo-9.11.36-3.el8.aarch64.rpm bind-debugsource-9.11.36-3.el8.aarch64.rpm bind-devel-9.11.36-3.el8.aarch64.rpm bind-export-libs-debuginfo-9.11.36-3.el8.aarch64.rpm bind-libs-9.11.36-3.el8.aarch64.rpm bind-libs-debuginfo-9.11.36-3.el8.aarch64.rpm bind-libs-lite-9.11.36-3.el8.aarch64.rpm bind-libs-lite-debuginfo-9.11.36-3.el8.aarch64.rpm bind-lite-devel-9.11.36-3.el8.aarch64.rpm bind-pkcs11-9.11.36-3.el8.aarch64.rpm bind-pkcs11-debuginfo-9.11.36-3.el8.aarch64.rpm bind-pkcs11-devel-9.11.36-3.el8.aarch64.rpm bind-pkcs11-libs-9.11.36-3.el8.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.36-3.el8.aarch64.rpm bind-pkcs11-utils-9.11.36-3.el8.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.36-3.el8.aarch64.rpm bind-sdb-9.11.36-3.el8.aarch64.rpm bind-sdb-chroot-9.11.36-3.el8.aarch64.rpm bind-sdb-debuginfo-9.11.36-3.el8.aarch64.rpm bind-utils-9.11.36-3.el8.aarch64.rpm bind-utils-debuginfo-9.11.36-3.el8.aarch64.rpm
noarch: bind-license-9.11.36-3.el8.noarch.rpm python3-bind-9.11.36-3.el8.noarch.rpm
ppc64le: bind-9.11.36-3.el8.ppc64le.rpm bind-chroot-9.11.36-3.el8.ppc64le.rpm bind-debuginfo-9.11.36-3.el8.ppc64le.rpm bind-debugsource-9.11.36-3.el8.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:2092-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2092
Issue date: 2022-05-10

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 Red Hat Enterprise Linux moderate impact DNS update resolver performance bind bug fix

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

1934035 - softshm can be removed as weak deps as its only in buildroot

1950714 - SELinux is preventing /usr/sbin/named from 'name_bind' accesses on the udp_socket port 61000.

2013993 - Rebase to the last BIND 9.11.36 release

2017636 - CVE-2021-25219 bind: Lame cache can be abused to severely degrade resolver performance

2021814 - Please rebuild with json-c-0.13.1-3

2030239 - named consumed too much memory and failed to reload.

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