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Red Hat Enterprise Linux 7: RHSA-2020-1061 Moderate: Bind Fixes

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Ubuntu releases Important update for Glibc addressing vulnerabilities and enhancing system stability, boosting core library operations.
An update for bind is now available for Red Hat Enterprise Linux 7

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: TCP Pipelining doesn't limit TCP clients on a single connection (CVE-2019-6477)
* bind: An assertion failure if a trust anchor rolls over to an unsupported key algorithm when using managed-keys (CVE-2018-5745)
* bind: Controls for zone transfers may not be properly applied to DLZs if the zones are writable (CVE-2019-6465)
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 7.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate bug fix security fix Red Hat Enterprise Linux DNS bind update

References

https://access.redhat.com/security/cve/CVE-2018-5745 https://access.redhat.com/security/cve/CVE-2019-6465 https://access.redhat.com/security/cve/CVE-2019-6477 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: bind-9.11.4-16.P2.el7.src.rpm
noarch: bind-license-9.11.4-16.P2.el7.noarch.rpm
x86_64: bind-debuginfo-9.11.4-16.P2.el7.i686.rpm bind-debuginfo-9.11.4-16.P2.el7.x86_64.rpm bind-export-libs-9.11.4-16.P2.el7.i686.rpm bind-export-libs-9.11.4-16.P2.el7.x86_64.rpm bind-libs-9.11.4-16.P2.el7.i686.rpm bind-libs-9.11.4-16.P2.el7.x86_64.rpm bind-libs-lite-9.11.4-16.P2.el7.i686.rpm bind-libs-lite-9.11.4-16.P2.el7.x86_64.rpm bind-utils-9.11.4-16.P2.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bind-9.11.4-16.P2.el7.x86_64.rpm bind-chroot-9.11.4-16.P2.el7.x86_64.rpm bind-debuginfo-9.11.4-16.P2.el7.i686.rpm bind-debuginfo-9.11.4-16.P2.el7.x86_64.rpm bind-devel-9.11.4-16.P2.el7.i686.rpm bind-devel-9.11.4-16.P2.el7.x86_64.rpm bind-export-devel-9.11.4-16.P2.el7.i686.rpm bind-export-devel-9.11.4-16.P2.el7.x86_64.rpm bind-lite-devel-9.11.4-16.P2.el7.i686.rpm bind-lite-devel-9.11.4-16.P2.el7.x86_64.rpm bind-pkcs11-9.11.4-16.P2.el7.x86_64.rpm bind-pkcs11-devel-9.11.4-16.P2.el7.i686.rpm bind-pkcs11-devel-9.11.4-16.P2.el7.x86_64.rpm bind-pkcs11-libs-9.11.4-16.P2.el7.i686.rpm bind-pkcs11-libs-9.11.4-16.P2.el7.x86_64.rpm bind-pkcs11-utils-9.11.4-16.P2.el7.x86_64.rpm bind-sdb-9.11.4-16.P2.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1061-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1061
Issue date: 2020-03-31

Topic

An update for bind is now available for Red Hat Enterprise Linux 7.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 security fix Red Hat Enterprise Linux DNS bind update

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1679303 - CVE-2018-5745 bind: An assertion failure if a trust anchor rolls over to an unsupported key algorithm when using managed-keys

1679304 - CVE-2019-6465 bind: Controls for zone transfers may not be properly applied to DLZs if the zones are writable

1743572 - nslookup doesn't try to search the search in /etc/resolv.conf

1753259 - Regression: BIND 9.11 listens on [::]:53 even it isn't configured to do so

1773617 - CVE-2019-6477 bind: TCP Pipelining doesn't limit TCP clients on a single connection

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