RedHat: RHSA-2020-3379:01 Important: bind security update
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: 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.
Summary
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.
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
Package List
Red Hat Enterprise Linux Server AUS (v. 6.5):
Source:
bind-9.8.2-0.23.rc1.el6_5.9.src.rpm
x86_64:
bind-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-chroot-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.9.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.9.i686.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-utils-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.5):
Source:
bind-9.8.2-0.23.rc1.el6_5.9.src.rpm
x86_64:
bind-debuginfo-9.8.2-0.23.rc1.el6_5.9.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.9.i686.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.9.x86_64.rpm
bind-sdb-9.8.2-0.23.rc1.el6_5.9.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/
Topic
An update for bind is now available for Red Hat Enterprise Linux 6.5Advanced Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server AUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64
Bugs Fixed
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
