Synopsis

bind-dyndb-ldap bug fix and enhancement update

Type/Severity

Product Enhancement Advisory

Topic

Updated bind-dyndb-ldap packages that fix several bugs and add various enhancements are now available for Red Hat Enterprise Linux 7.

Description

The dynamic Lightweight Directory Access Protocol (LDAP) back end is a plug-in for BIND that provides back-end capabilities for LDAP databases. It features support for dynamic updates and internal caching that helps to reduce the load on LDAP servers.

The bind-dyndb-ldap packages have been upgraded to upstream version 8.0, which provides a number of bug fixes and enhancements over the previous version. Among others:

• LDAP schema has been extended with the "UnknownRecord" attribute. As a result, unknown record types can now be stored in LDAP using generic syntax according to RFC 3597.
• Pointer Record (PTR) synchronization has been improved in several ways. New PTR records now inherit the TTL value from the respective A/AAAA records. The SERVFAIL error is no longer returned to clients if A/AAAA record update succeeded but PTR record synchronization failed because of misconfiguration; such errors are now only logged. PTR record synchronization has been reworked to reduce the probability of race condition occurrences.
• LDAP rename for DNS records using the MODRDN operation is now supported. Note that renaming of whole DNS zones is not supported and will lead to errors.
• Data changed in LDAP while the networking connection to the server was unavailable are now refreshed properly.
• Crashes caused by object class and Distinguished Name (DN) format mismatch

have been fixed.

• Compatibility with BIND 9.9.4 has been improved.
• Documentation and schema have been fixed and improved. The doc/schema.ldif file is now properly formatted as LDIF and contains instructions for OpenLDAP and 389 Directory Server.

(BZ#1204110)

Users of bind-dyndb-ldap are advised to upgrade to these updated packages, which fix these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.3 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.3 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.2 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.4 ppc64le
• Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.3 ppc64le
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3 x86_64

Fixes

• BZ - 829395 - [FEATURE] DNSSEC support
• BZ - 1139776 - LDAP MODRDN (rename) is not supported
• BZ - 1139778 - Records deleted when connection to LDAP is down are not refreshed properly
• BZ - 1184065 - PTR record synchronization for A/AAAA record tuple can fail mysteriously
• BZ - 1204110 - Rebase bind-dyndb-ldap to latest upstream version
• BZ - 1207539 - [RFE] Add support for TLSA resource records (DANE)
• BZ - 1207540 - Plugin will crash if idnsForwardZone object is in the wrong place
• BZ - 1207541 - [RFE] Generic support for unknown DNS RR types (RFC 3597)

CVEs

(none)

References