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Red Hat Enterprise Linux 9 RHSA-2023-2261-01 Moderate: Bind DoS Risks

red hat
Calendar Grey May 9, 2023
Dist Redhat Esm H88
Cautionary security notice for Red Hat Enterprise Linux bind patch focusing on various concerns, particularly about potential DoS vulnerabilities.
An update for bind is now available for Red Hat Enterprise Linux 9

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: 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 9.2 Release Notes linked from the References section.

Topics%20covered

Topics Covered

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

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/9/html/9.2_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 9):
Source: bind-9.16.23-11.el9.src.rpm
aarch64: bind-9.16.23-11.el9.aarch64.rpm bind-chroot-9.16.23-11.el9.aarch64.rpm bind-debuginfo-9.16.23-11.el9.aarch64.rpm bind-debugsource-9.16.23-11.el9.aarch64.rpm bind-dnssec-utils-9.16.23-11.el9.aarch64.rpm bind-dnssec-utils-debuginfo-9.16.23-11.el9.aarch64.rpm bind-libs-9.16.23-11.el9.aarch64.rpm bind-libs-debuginfo-9.16.23-11.el9.aarch64.rpm bind-utils-9.16.23-11.el9.aarch64.rpm bind-utils-debuginfo-9.16.23-11.el9.aarch64.rpm
noarch: bind-dnssec-doc-9.16.23-11.el9.noarch.rpm bind-license-9.16.23-11.el9.noarch.rpm python3-bind-9.16.23-11.el9.noarch.rpm
ppc64le: bind-9.16.23-11.el9.ppc64le.rpm bind-chroot-9.16.23-11.el9.ppc64le.rpm bind-debuginfo-9.16.23-11.el9.ppc64le.rpm bind-debugsource-9.16.23-11.el9.ppc64le.rpm bind-dnssec-utils-9.16.23-11.el9.ppc64le.rpm bind-dnssec-utils-debuginfo-9.16.23-11.el9.ppc64le.rpm bind-libs-9.16.23-11.el9.ppc64le.rpm bind-libs-debuginfo-9.16.23-11.el9.ppc64le.rpm bind-utils-9.16.23-11.el9.ppc64le.rpm bind-utils-debuginfo-9.16.23-11.el9.ppc64le.rpm
s390x: bind-9.16.23-11.el9.s390x.rpm bind-chroot-9.16.23-11.el9.s390x.rpm bind-debuginfo-9.16.23-11.el9.s390x.rpm bind-debugsource-9.16.23-11.el9.s390x.rpm bind-dnssec-utils-9.16.23-11.el9.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:2261-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:2261
Issue date: 2023-05-09

Topic

An update for bind is now available for Red Hat Enterprise Linux 9.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 update bug fix bind Red Hat Enterprise Linux moderate severity DoS risk

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux CRB (v. 9) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2126912 - named-pkcs11 crashing into dns-pkcs11 library red-black tree [bind rhel-9.2.0]

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

2129466 - bind-chroot-9.16.23-1.el9.x86_64 fails to create mount point /var/named/chroot/usr/lib64/named in chroot

2162795 - bind-dyndb-ldap fail to build with current bind 9.16.23 [rhel9]

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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