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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: bind security, bug fix, and enhancement update
Advisory ID: RHSA-2020:1845-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1845
Issue date: 2020-04-28
CVE Names: CVE-2019-6477
=====================================================================

1. Summary:

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 impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. 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

3. Description:

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
(9.11.13). (BZ#1704328)

Security Fix(es):

* bind: TCP Pipelining doesn’t limit TCP clients on a single connection
(CVE-2019-6477)

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 8.2 Release Notes linked from the References section.

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1664863 – [RFE] named: stale-answer support
1679766 – system test dnssec: Bind algorithm ED448 is broken
1704328 – Rebase bind to latest minor release 9.11.13
1759845 – python-bind’s isc.parsetab must be regenerated after python-ply has been updated
1773617 – CVE-2019-6477 bind: TCP Pipelining doesn’t limit TCP clients on a single connection
1790879 – named allocates new memory on each reload

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

aarch64:
bind-9.11.13-3.el8.aarch64.rpm
bind-chroot-9.11.13-3.el8.aarch64.rpm
bind-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-debugsource-9.11.13-3.el8.aarch64.rpm
bind-devel-9.11.13-3.el8.aarch64.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-libs-9.11.13-3.el8.aarch64.rpm
bind-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-libs-lite-9.11.13-3.el8.aarch64.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-lite-devel-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-devel-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-libs-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-utils-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-sdb-9.11.13-3.el8.aarch64.rpm
bind-sdb-chroot-9.11.13-3.el8.aarch64.rpm
bind-sdb-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-utils-9.11.13-3.el8.aarch64.rpm
bind-utils-debuginfo-9.11.13-3.el8.aarch64.rpm

noarch:
bind-license-9.11.13-3.el8.noarch.rpm
python3-bind-9.11.13-3.el8.noarch.rpm

ppc64le:
bind-9.11.13-3.el8.ppc64le.rpm
bind-chroot-9.11.13-3.el8.ppc64le.rpm
bind-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-debugsource-9.11.13-3.el8.ppc64le.rpm
bind-devel-9.11.13-3.el8.ppc64le.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-libs-9.11.13-3.el8.ppc64le.rpm
bind-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-libs-lite-9.11.13-3.el8.ppc64le.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-lite-devel-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-devel-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-libs-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-utils-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-sdb-9.11.13-3.el8.ppc64le.rpm
bind-sdb-chroot-9.11.13-3.el8.ppc64le.rpm
bind-sdb-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-utils-9.11.13-3.el8.ppc64le.rpm
bind-utils-debuginfo-9.11.13-3.el8.ppc64le.rpm

s390x:
bind-9.11.13-3.el8.s390x.rpm
bind-chroot-9.11.13-3.el8.s390x.rpm
bind-debuginfo-9.11.13-3.el8.s390x.rpm
bind-debugsource-9.11.13-3.el8.s390x.rpm
bind-devel-9.11.13-3.el8.s390x.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-libs-9.11.13-3.el8.s390x.rpm
bind-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-libs-lite-9.11.13-3.el8.s390x.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.s390x.rpm
bind-lite-devel-9.11.13-3.el8.s390x.rpm
bind-pkcs11-9.11.13-3.el8.s390x.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.s390x.rpm
bind-pkcs11-devel-9.11.13-3.el8.s390x.rpm
bind-pkcs11-libs-9.11.13-3.el8.s390x.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-pkcs11-utils-9.11.13-3.el8.s390x.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.s390x.rpm
bind-sdb-9.11.13-3.el8.s390x.rpm
bind-sdb-chroot-9.11.13-3.el8.s390x.rpm
bind-sdb-debuginfo-9.11.13-3.el8.s390x.rpm
bind-utils-9.11.13-3.el8.s390x.rpm
bind-utils-debuginfo-9.11.13-3.el8.s390x.rpm

x86_64:
bind-9.11.13-3.el8.x86_64.rpm
bind-chroot-9.11.13-3.el8.x86_64.rpm
bind-debuginfo-9.11.13-3.el8.i686.rpm
bind-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-debugsource-9.11.13-3.el8.i686.rpm
bind-debugsource-9.11.13-3.el8.x86_64.rpm
bind-devel-9.11.13-3.el8.i686.rpm
bind-devel-9.11.13-3.el8.x86_64.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-libs-9.11.13-3.el8.i686.rpm
bind-libs-9.11.13-3.el8.x86_64.rpm
bind-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-libs-lite-9.11.13-3.el8.i686.rpm
bind-libs-lite-9.11.13-3.el8.x86_64.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.i686.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-lite-devel-9.11.13-3.el8.i686.rpm
bind-lite-devel-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-devel-9.11.13-3.el8.i686.rpm
bind-pkcs11-devel-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-libs-9.11.13-3.el8.i686.rpm
bind-pkcs11-libs-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-utils-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-sdb-9.11.13-3.el8.x86_64.rpm
bind-sdb-chroot-9.11.13-3.el8.x86_64.rpm
bind-sdb-debuginfo-9.11.13-3.el8.i686.rpm
bind-sdb-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-utils-9.11.13-3.el8.x86_64.rpm
bind-utils-debuginfo-9.11.13-3.el8.i686.rpm
bind-utils-debuginfo-9.11.13-3.el8.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
bind-9.11.13-3.el8.src.rpm

aarch64:
bind-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-debugsource-9.11.13-3.el8.aarch64.rpm
bind-export-devel-9.11.13-3.el8.aarch64.rpm
bind-export-libs-9.11.13-3.el8.aarch64.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-sdb-debuginfo-9.11.13-3.el8.aarch64.rpm
bind-utils-debuginfo-9.11.13-3.el8.aarch64.rpm

ppc64le:
bind-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-debugsource-9.11.13-3.el8.ppc64le.rpm
bind-export-devel-9.11.13-3.el8.ppc64le.rpm
bind-export-libs-9.11.13-3.el8.ppc64le.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-sdb-debuginfo-9.11.13-3.el8.ppc64le.rpm
bind-utils-debuginfo-9.11.13-3.el8.ppc64le.rpm

s390x:
bind-debuginfo-9.11.13-3.el8.s390x.rpm
bind-debugsource-9.11.13-3.el8.s390x.rpm
bind-export-devel-9.11.13-3.el8.s390x.rpm
bind-export-libs-9.11.13-3.el8.s390x.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.s390x.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.s390x.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.s390x.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.s390x.rpm
bind-sdb-debuginfo-9.11.13-3.el8.s390x.rpm
bind-utils-debuginfo-9.11.13-3.el8.s390x.rpm

x86_64:
bind-debuginfo-9.11.13-3.el8.i686.rpm
bind-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-debugsource-9.11.13-3.el8.i686.rpm
bind-debugsource-9.11.13-3.el8.x86_64.rpm
bind-export-devel-9.11.13-3.el8.i686.rpm
bind-export-devel-9.11.13-3.el8.x86_64.rpm
bind-export-libs-9.11.13-3.el8.i686.rpm
bind-export-libs-9.11.13-3.el8.x86_64.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-export-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.i686.rpm
bind-libs-lite-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-libs-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.i686.rpm
bind-pkcs11-utils-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-sdb-debuginfo-9.11.13-3.el8.i686.rpm
bind-sdb-debuginfo-9.11.13-3.el8.x86_64.rpm
bind-utils-debuginfo-9.11.13-3.el8.i686.rpm
bind-utils-debuginfo-9.11.13-3.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-6477
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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