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Red Hat Enterprise Linux 8: RHSA-2021-4384 Moderate: Bind Security Issue

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Timely patch release for Ubuntu 20.04 includes essential security enhancements and resolves significant software vulnerabilities.
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: Broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly (CVE-2021-25214)
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 8.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate bug fix bind red hat enterprise linux network service dns

References

https://access.redhat.com/security/cve/CVE-2021-25214 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.26-6.el8.aarch64.rpm bind-chroot-9.11.26-6.el8.aarch64.rpm bind-debuginfo-9.11.26-6.el8.aarch64.rpm bind-debugsource-9.11.26-6.el8.aarch64.rpm bind-devel-9.11.26-6.el8.aarch64.rpm bind-export-libs-debuginfo-9.11.26-6.el8.aarch64.rpm bind-libs-9.11.26-6.el8.aarch64.rpm bind-libs-debuginfo-9.11.26-6.el8.aarch64.rpm bind-libs-lite-9.11.26-6.el8.aarch64.rpm bind-libs-lite-debuginfo-9.11.26-6.el8.aarch64.rpm bind-lite-devel-9.11.26-6.el8.aarch64.rpm bind-pkcs11-9.11.26-6.el8.aarch64.rpm bind-pkcs11-debuginfo-9.11.26-6.el8.aarch64.rpm bind-pkcs11-devel-9.11.26-6.el8.aarch64.rpm bind-pkcs11-libs-9.11.26-6.el8.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.26-6.el8.aarch64.rpm bind-pkcs11-utils-9.11.26-6.el8.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.26-6.el8.aarch64.rpm bind-sdb-9.11.26-6.el8.aarch64.rpm bind-sdb-chroot-9.11.26-6.el8.aarch64.rpm bind-sdb-debuginfo-9.11.26-6.el8.aarch64.rpm bind-utils-9.11.26-6.el8.aarch64.rpm bind-utils-debuginfo-9.11.26-6.el8.aarch64.rpm
noarch: bind-license-9.11.26-6.el8.noarch.rpm python3-bind-9.11.26-6.el8.noarch.rpm
ppc64le: bind-9.11.26-6.el8.ppc64le.rpm bind-chroot-9.11.26-6.el8.ppc64le.rpm bind-debuginfo-9.11.26-6.el8.ppc64le.rpm bind-debugsource-9.11.26-6.el8.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4384-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4384
Issue date: 2021-11-09

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 moderate bug fix bind red hat enterprise linux network service dns

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

1953056 - named-pkcs11.service: abort on REQUIRE(isc_refcount_current(&rbtdb->node_locks[i].references) == 0)

1953849 - CVE-2021-25214 bind: Broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly

1980916 - dns_tkey_gssnegotiate: TKEY is unacceptable" during ipa-client-install

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