5.3 - RHSA-2019:3552

Problem Description:

An update for bind is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Low. 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 AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, 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 failure if a trust anchor rolls over to an unsupported key algorithm when using managed-keys (CVE-2018-5745)

* bind: Controls for zone transfers may not be properly applied to DLZs if the zones are writable (CVE-2019-6465)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from 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/):

1666785 - conflicts between attempted installs of i686 and x86_64 1668682 - libisc doesn't initialize entropy pool for ssl context 1679303 - CVE-2018-5745 bind: An assertion failure if a trust anchor rolls over to an unsupported key algorithm when using managed-keys 1679304 - CVE-2019-6465 bind: Controls for zone transfers may not be properly applied to DLZs if the zones are writable 1679307 - idna system tests are failing, some names are not rejected