bind security update

CentOS Errata and Security Advisory CESA-2020:5011

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)

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2020-November/085974.html

Affected packages:
bind
bind-chroot
bind-devel
bind-export-devel
bind-export-libs
bind-libs
bind-libs-lite
bind-license
bind-lite-devel
bind-pkcs11
bind-pkcs11-devel
bind-pkcs11-libs
bind-pkcs11-utils
bind-sdb
bind-sdb-chroot
bind-utils

Upstream details at:
https://access.redhat.com/errata/RHSA-2020:5011