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Red Hat Enterprise Linux 8: RHSA-2023-4100-01 Important: bind9 Cache Issue

red hat
Calendar Grey July 17, 2023
Dist Redhat Esm H88
Critical security patch released for bind9.16 tackles major vulnerability affecting Red Hat Enterprise Linux 8 environments.
An update for bind9.16 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

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: named's configured cache size limit can be significantly exceeded (CVE-2023-2828)
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.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important DNS issue security impact bind9 cache size limit

References

https://access.redhat.com/security/cve/CVE-2023-2828 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: bind9.16-9.16.23-0.14.el8_8.1.src.rpm
aarch64: bind9.16-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-chroot-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-debuginfo-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-debugsource-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-dnssec-utils-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-libs-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-libs-debuginfo-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-utils-9.16.23-0.14.el8_8.1.aarch64.rpm bind9.16-utils-debuginfo-9.16.23-0.14.el8_8.1.aarch64.rpm
noarch: bind9.16-license-9.16.23-0.14.el8_8.1.noarch.rpm python3-bind9.16-9.16.23-0.14.el8_8.1.noarch.rpm
ppc64le: bind9.16-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-chroot-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-debuginfo-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-debugsource-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-dnssec-utils-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-libs-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-libs-debuginfo-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-utils-9.16.23-0.14.el8_8.1.ppc64le.rpm bind9.16-utils-debuginfo-9.16.23-0.14.el8_8.1.ppc64le.rpm
s390x:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4100-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4100
Issue date: 2023-07-17

Topic

An update for bind9.16 is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important DNS issue security impact bind9 cache size limit

Relevant Releases Architectures

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

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

Bugs Fixed

2216227 - CVE-2023-2828 bind: named's configured cache size limit can be significantly exceeded

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