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Red Hat Enterprise Linux 8: RHSA-2020-4500-01 Moderate: Bind Security Fix

red hat
Calendar Grey November 4, 2020
Dist Redhat Esm H88
Red Hat has published a notification for bind, classified with a moderate security level, outlining resolutions for multiple vulnerabilities. Discover additional information here.
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 (9.11.20). (BZ#1818785)
Security Fix(es):
* bind: asterisk character in an empty non-terminal can cause an assertion failure in rbtdb.c (CVE-2020-8619)
* bind: truncated TSIG response can lead to an assertion failure (CVE-2020-8622)
* bind: remotely triggerable assertion failure in pk11.c (CVE-2020-8623)
* bind: incorrect enforcement of update-policy rules of type "subdomain" (CVE-2020-8624)
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 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory bug fix Red Hat Enterprise Linux DNS protocol bind update Moderate severity

References

https://access.redhat.com/security/cve/CVE-2020-8619 https://access.redhat.com/security/cve/CVE-2020-8622 https://access.redhat.com/security/cve/CVE-2020-8623 https://access.redhat.com/security/cve/CVE-2020-8624 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.20-5.el8.aarch64.rpm bind-chroot-9.11.20-5.el8.aarch64.rpm bind-debuginfo-9.11.20-5.el8.aarch64.rpm bind-debugsource-9.11.20-5.el8.aarch64.rpm bind-devel-9.11.20-5.el8.aarch64.rpm bind-export-libs-debuginfo-9.11.20-5.el8.aarch64.rpm bind-libs-9.11.20-5.el8.aarch64.rpm bind-libs-debuginfo-9.11.20-5.el8.aarch64.rpm bind-libs-lite-9.11.20-5.el8.aarch64.rpm bind-libs-lite-debuginfo-9.11.20-5.el8.aarch64.rpm bind-lite-devel-9.11.20-5.el8.aarch64.rpm bind-pkcs11-9.11.20-5.el8.aarch64.rpm bind-pkcs11-debuginfo-9.11.20-5.el8.aarch64.rpm bind-pkcs11-devel-9.11.20-5.el8.aarch64.rpm bind-pkcs11-libs-9.11.20-5.el8.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.20-5.el8.aarch64.rpm bind-pkcs11-utils-9.11.20-5.el8.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.20-5.el8.aarch64.rpm bind-sdb-9.11.20-5.el8.aarch64.rpm bind-sdb-chroot-9.11.20-5.el8.aarch64.rpm bind-sdb-debuginfo-9.11.20-5.el8.aarch64.rpm bind-utils-9.11.20-5.el8.aarch64.rpm bind-utils-debuginfo-9.11.20-5.el8.aarch64.rpm
noarch: bind-license-9.11.20-5.el8.noarch.rpm python3-bind-9.11.20-5.el8.noarch.rpm
ppc64le: bind-9.11.20-5.el8.ppc64le.rpm bind-chroot-9.11.20-5.el8.ppc64le.rpm bind-debuginfo-9.11.20-5.el8.ppc64le.rpm bind-debugsource-9.11.20-5.el8.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:4500-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4500
Issue date: 2020-11-03

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 bug fix Red Hat Enterprise Linux DNS protocol bind update Moderate severity

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

1693395 - Remove revoked KSK from trusted keys

1749505 - internal test suite failures

1814158 - bind internal testsuite, random failure in autosign

1817870 - /usr/bin/nsupdate -g segfault when connect to AD

1847244 - CVE-2020-8619 bind: asterisk character in an empty non-terminal can cause an assertion failure in rbtdb.c

1848169 - named-checkconf fails to validate configuration file with CIDRs with host bits set

1859454 - named-pkcs11.service: (named-pkcs11) of user 25 dumped core.

1869473 - CVE-2020-8622 bind: truncated TSIG response can lead to an assertion failure

1869477 - CVE-2020-8623 bind: remotely triggerable assertion failure in pk11.c

1869480 - CVE-2020-8624 bind: incorrect enforcement of update-policy rules of type "subdomain"

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