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Red Hat Security Advisory 2020-5011-01

Red Hat Security Advisory 2020-5011-01
Posted Nov 10, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5011-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2020-8622, CVE-2020-8623, CVE-2020-8624
SHA-256 | aaf648a3da7817299ff297522b94b3967620cc6d46bede90ffb091bef1c78a17
Download | Favorite | View

Red Hat Security Advisory 2020-5011-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Moderate: bind security and bug fix update
Advisory ID:       RHSA-2020:5011-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5011
Issue date:        2020-11-10
CVE Names:         CVE-2020-8622 CVE-2020-8623 CVE-2020-8624
====================================================================
1. Summary:

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 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 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

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.

Security Fix(es):

* 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.

Bug Fix(es):

* BIND stops DNSKEY lookup in get_dst_key() when a key with unsupported
algorithm is found first [RHEL7] (BZ#1884530)

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/):

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"
1884530 - BIND stops DNSKEY lookup in get_dst_key() when a key with unsupported algorithm is found first [RHEL7]

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
bind-9.11.4-26.P2.el7_9.2.src.rpm

noarch:
bind-license-9.11.4-26.P2.el7_9.2.noarch.rpm

x86_64:
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
bind-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
bind-9.11.4-26.P2.el7_9.2.src.rpm

noarch:
bind-license-9.11.4-26.P2.el7_9.2.noarch.rpm

x86_64:
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
bind-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
bind-9.11.4-26.P2.el7_9.2.src.rpm

noarch:
bind-license-9.11.4-26.P2.el7_9.2.noarch.rpm

ppc64:
bind-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-libs-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-libs-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-utils-9.11.4-26.P2.el7_9.2.ppc64.rpm

ppc64le:
bind-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-libs-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-utils-9.11.4-26.P2.el7_9.2.ppc64le.rpm

s390x:
bind-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.s390.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.s390.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-libs-9.11.4-26.P2.el7_9.2.s390.rpm
bind-libs-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.s390.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.s390.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-utils-9.11.4-26.P2.el7_9.2.s390x.rpm

x86_64:
bind-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-devel-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-devel-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.ppc.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.ppc64.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.ppc64.rpm

ppc64le:
bind-debuginfo-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-devel-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.ppc64le.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.ppc64le.rpm

s390x:
bind-debuginfo-9.11.4-26.P2.el7_9.2.s390.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-devel-9.11.4-26.P2.el7_9.2.s390.rpm
bind-devel-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.s390.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.s390.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.s390.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.s390x.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.s390x.rpm

x86_64:
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
bind-9.11.4-26.P2.el7_9.2.src.rpm

noarch:
bind-license-9.11.4-26.P2.el7_9.2.noarch.rpm

x86_64:
bind-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-chroot-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.i686.rpm
bind-libs-lite-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-libs-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-utils-9.11.4-26.P2.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
bind-debuginfo-9.11.4-26.P2.el7_9.2.i686.rpm
bind-debuginfo-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-export-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-lite-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.i686.rpm
bind-pkcs11-devel-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-9.11.4-26.P2.el7_9.2.x86_64.rpm
bind-sdb-chroot-9.11.4-26.P2.el7_9.2.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-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

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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