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Red Hat Enterprise Linux 8 RHSA-2023-2792-01 Moderate: bind9.16 DoS

red hat
Calendar Grey May 16, 2023
Dist Redhat Esm H88
Red Hat Enterprise Linux 8 has released a moderate advisory concerning bind9.16, providing necessary security patches and updates addressing various vulnerabilities.
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: processing large delegations may severely degrade resolver performance (CVE-2022-2795)
* bind: flooding with UPDATE requests may lead to DoS (CVE-2022-3094)
* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3736)
* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3924)
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 8.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory bug fix Red Hat Enterprise Linux moderate severity bind update DoS risk DNS security issue

References

https://access.redhat.com/security/cve/CVE-2022-2795 https://access.redhat.com/security/cve/CVE-2022-3094 https://access.redhat.com/security/cve/CVE-2022-3736 https://access.redhat.com/security/cve/CVE-2022-3924 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.8_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: bind9.16-9.16.23-0.14.el8.src.rpm
aarch64: bind9.16-9.16.23-0.14.el8.aarch64.rpm bind9.16-chroot-9.16.23-0.14.el8.aarch64.rpm bind9.16-debuginfo-9.16.23-0.14.el8.aarch64.rpm bind9.16-debugsource-9.16.23-0.14.el8.aarch64.rpm bind9.16-dnssec-utils-9.16.23-0.14.el8.aarch64.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.14.el8.aarch64.rpm bind9.16-libs-9.16.23-0.14.el8.aarch64.rpm bind9.16-libs-debuginfo-9.16.23-0.14.el8.aarch64.rpm bind9.16-utils-9.16.23-0.14.el8.aarch64.rpm bind9.16-utils-debuginfo-9.16.23-0.14.el8.aarch64.rpm
noarch: bind9.16-license-9.16.23-0.14.el8.noarch.rpm python3-bind9.16-9.16.23-0.14.el8.noarch.rpm
ppc64le: bind9.16-9.16.23-0.14.el8.ppc64le.rpm bind9.16-chroot-9.16.23-0.14.el8.ppc64le.rpm bind9.16-debuginfo-9.16.23-0.14.el8.ppc64le.rpm bind9.16-debugsource-9.16.23-0.14.el8.ppc64le.rpm bind9.16-dnssec-utils-9.16.23-0.14.el8.ppc64le.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.14.el8.ppc64le.rpm bind9.16-libs-9.16.23-0.14.el8.ppc64le.rpm bind9.16-libs-debuginfo-9.16.23-0.14.el8.ppc64le.rpm bind9.16-utils-9.16.23-0.14.el8.ppc64le.rpm bind9.16-utils-debuginfo-9.16.23-0.14.el8.ppc64le.rpm
s390x: bind9.16-9.16.23-0.14.el8.s390x.rpm bind9.16-chroot-9.16.23-0.14.el8.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:2792-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:2792
Issue date: 2023-05-16

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 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 bug fix Red Hat Enterprise Linux moderate severity bind update DoS risk DNS security issue

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

2115322 - bind9.16-dnssec-utils should be in AppStream repository

2128584 - CVE-2022-2795 bind: processing large delegations may severely degrade resolver performance

2164032 - CVE-2022-3094 bind: flooding with UPDATE requests may lead to DoS

2164038 - CVE-2022-3736 bind: sending specific queries to the resolver may cause a DoS

2164039 - CVE-2022-3924 bind: sending specific queries to the resolver may cause a DoS

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