-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: bind security update
Advisory ID:       RHSA-2021:1468-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:1468
Issue date:        2021-04-29
CVE Names:         CVE-2021-25215 
====================================================================
1. Summary:

An update for bind is now available for Red Hat Enterprise Linux 6 Extended
Lifecycle Support.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 Server (v. 6 ELS) - i386, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6 ELS) - i386, 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.

Security Fix(es):

* bind: An assertion check can fail while answering queries for DNAME
records that require the DNAME to be processed to resolve itself
(CVE-2021-25215)

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.

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/):

1953857 - CVE-2021-25215 bind: An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself

6. Package List:

Red Hat Enterprise Linux Server (v. 6 ELS):

Source:
bind-9.8.2-0.68.rc1.el6_10.11.src.rpm

i386:
bind-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-chroot-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-libs-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-utils-9.8.2-0.68.rc1.el6_10.11.i686.rpm

s390x:
bind-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-chroot-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.s390.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-libs-9.8.2-0.68.rc1.el6_10.11.s390.rpm
bind-libs-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-utils-9.8.2-0.68.rc1.el6_10.11.s390x.rpm

x86_64:
bind-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-chroot-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-libs-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-libs-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-utils-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6 ELS):

i386:
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-devel-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-sdb-9.8.2-0.68.rc1.el6_10.11.i686.rpm

s390x:
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.s390.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-devel-9.8.2-0.68.rc1.el6_10.11.s390.rpm
bind-devel-9.8.2-0.68.rc1.el6_10.11.s390x.rpm
bind-sdb-9.8.2-0.68.rc1.el6_10.11.s390x.rpm

x86_64:
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-debuginfo-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-devel-9.8.2-0.68.rc1.el6_10.11.i686.rpm
bind-devel-9.8.2-0.68.rc1.el6_10.11.x86_64.rpm
bind-sdb-9.8.2-0.68.rc1.el6_10.11.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-2021-25215
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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2CXa
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://listman.redhat.com/mailman/listinfo/rhsa-announce