A bind security update has been released for Red Hat Enterprise Linux 7.2.
RHSA-2020:3471-01: Important: bind security update
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Red Hat Security Advisory
Synopsis: Important: bind security update
Advisory ID: RHSA-2020:3471-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3471
Issue date: 2020-08-18
CVE Names: CVE-2020-8616 CVE-2020-8617
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1. Summary:
An update for bind is now available for Red Hat Enterprise Linux 7.2
Advanced Update 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 AUS (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - 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: BIND does not sufficiently limit the number of fetches performed
when processing referrals (CVE-2020-8616)
* bind: A logic error in code which checks TSIG validity can be used to
trigger an assertion failure in tsig.c (CVE-2020-8617)
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/):
1836118 - CVE-2020-8616 bind: BIND does not sufficiently limit the number of fetches performed when processing referrals
1836124 - CVE-2020-8617 bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.2):
Source:
bind-9.9.4-29.el7_2.9.src.rpm
noarch:
bind-license-9.9.4-29.el7_2.9.noarch.rpm
x86_64:
bind-9.9.4-29.el7_2.9.x86_64.rpm
bind-chroot-9.9.4-29.el7_2.9.x86_64.rpm
bind-debuginfo-9.9.4-29.el7_2.9.i686.rpm
bind-debuginfo-9.9.4-29.el7_2.9.x86_64.rpm
bind-libs-9.9.4-29.el7_2.9.i686.rpm
bind-libs-9.9.4-29.el7_2.9.x86_64.rpm
bind-libs-lite-9.9.4-29.el7_2.9.i686.rpm
bind-libs-lite-9.9.4-29.el7_2.9.x86_64.rpm
bind-pkcs11-9.9.4-29.el7_2.9.x86_64.rpm
bind-pkcs11-libs-9.9.4-29.el7_2.9.i686.rpm
bind-pkcs11-libs-9.9.4-29.el7_2.9.x86_64.rpm
bind-pkcs11-utils-9.9.4-29.el7_2.9.x86_64.rpm
bind-utils-9.9.4-29.el7_2.9.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.2):
x86_64:
bind-debuginfo-9.9.4-29.el7_2.9.i686.rpm
bind-debuginfo-9.9.4-29.el7_2.9.x86_64.rpm
bind-devel-9.9.4-29.el7_2.9.i686.rpm
bind-devel-9.9.4-29.el7_2.9.x86_64.rpm
bind-lite-devel-9.9.4-29.el7_2.9.i686.rpm
bind-lite-devel-9.9.4-29.el7_2.9.x86_64.rpm
bind-pkcs11-devel-9.9.4-29.el7_2.9.i686.rpm
bind-pkcs11-devel-9.9.4-29.el7_2.9.x86_64.rpm
bind-sdb-9.9.4-29.el7_2.9.x86_64.rpm
bind-sdb-chroot-9.9.4-29.el7_2.9.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-2020-8616
https://access.redhat.com/security/cve/CVE-2020-8617
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 2020 Red Hat, Inc.
