Issued:
2024-05-07
Updated:
2024-05-07

RHSA-2024:2720 - Important: bind and dhcp security update

Synopsis

Important: bind and dhcp security update

Type/Severity

Security Advisory Important

Topic

An update for bind and dhcp is now available for Red Hat Enterprise Linux 8.6 Extended 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

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.

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es):

  • bind: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

  • bind: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

  • bind: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

  • bind: flooding with UPDATE requests may lead to DoS (CVE-2022-3094)

  • bind: processing large delegations may severely degrade resolver performance (CVE-2022-2795)

  • bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)

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.

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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions8.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support8.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension8.6x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support8.6ppc64le
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support8.6s390x
Red Hat Enterprise Linux for ARM 64 - Extended Update Support8.6aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions8.6ppc64le
Red Hat Enterprise Linux Server - TUS8.6x86_64
Red Hat Enterprise Linux Server - AUS8.6x86_64

Updated Packages

  • bind-export-devel-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-libs-4.3.6-47.el8_6.2.i686.rpm
  • bind-libs-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • bind-lite-devel-9.11.36-3.el8_6.7.i686.rpm
  • bind-sdb-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-client-debuginfo-4.3.6-47.el8_6.2.x86_64.rpm
  • dhcp-debuginfo-4.3.6-47.el8_6.2.aarch64.rpm
  • dhcp-libs-debuginfo-4.3.6-47.el8_6.2.s390x.rpm
  • bind-libs-lite-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-libs-lite-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-libs-lite-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-libs-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-relay-4.3.6-47.el8_6.2.s390x.rpm
  • bind-sdb-chroot-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-export-libs-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-utils-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • dhcp-server-debuginfo-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-libs-lite-9.11.36-3.el8_6.7.aarch64.rpm
  • dhcp-debuginfo-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-utils-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-server-debuginfo-4.3.6-47.el8_6.2.s390x.rpm
  • dhcp-server-debuginfo-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-libs-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-license-9.11.36-3.el8_6.7.noarch.rpm
  • dhcp-debugsource-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-pkcs11-libs-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-libs-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-libs-debuginfo-4.3.6-47.el8_6.2.aarch64.rpm
  • bind-utils-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-libs-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • bind-devel-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-libs-lite-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • bind-sdb-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-libs-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-libs-lite-9.11.36-3.el8_6.7.i686.rpm
  • bind-libs-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-client-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-sdb-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-export-libs-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-utils-9.11.36-3.el8_6.7.aarch64.rpm
  • dhcp-libs-4.3.6-47.el8_6.2.s390x.rpm
  • bind-utils-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-server-4.3.6-47.el8_6.2.aarch64.rpm
  • dhcp-relay-debuginfo-4.3.6-47.el8_6.2.aarch64.rpm
  • bind-pkcs11-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-sdb-9.11.36-3.el8_6.7.aarch64.rpm
  • dhcp-client-4.3.6-47.el8_6.2.aarch64.rpm
  • dhcp-client-debuginfo-4.3.6-47.el8_6.2.i686.rpm
  • bind-libs-lite-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-common-4.3.6-47.el8_6.2.noarch.rpm
  • bind-pkcs11-utils-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-libs-debuginfo-4.3.6-47.el8_6.2.ppc64le.rpm
  • dhcp-relay-debuginfo-4.3.6-47.el8_6.2.x86_64.rpm
  • dhcp-client-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-chroot-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-utils-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • bind-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-devel-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-debugsource-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-client-debuginfo-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-pkcs11-libs-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-sdb-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-libs-4.3.6-47.el8_6.2.x86_64.rpm
  • dhcp-libs-debuginfo-4.3.6-47.el8_6.2.i686.rpm
  • bind-lite-devel-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-export-devel-9.11.36-3.el8_6.7.i686.rpm
  • bind-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • dhcp-libs-4.3.6-47.el8_6.2.aarch64.rpm
  • bind-export-devel-9.11.36-3.el8_6.7.s390x.rpm
  • bind-pkcs11-devel-9.11.36-3.el8_6.7.s390x.rpm
  • bind-pkcs11-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-export-libs-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-4.3.6-47.el8_6.2.src.rpm
  • dhcp-client-debuginfo-4.3.6-47.el8_6.2.aarch64.rpm
  • dhcp-relay-4.3.6-47.el8_6.2.aarch64.rpm
  • dhcp-server-debuginfo-4.3.6-47.el8_6.2.aarch64.rpm
  • bind-9.11.36-3.el8_6.7.src.rpm
  • bind-export-libs-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-lite-devel-9.11.36-3.el8_6.7.s390x.rpm
  • bind-pkcs11-libs-9.11.36-3.el8_6.7.aarch64.rpm
  • dhcp-server-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-export-libs-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-utils-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • dhcp-client-4.3.6-47.el8_6.2.s390x.rpm
  • bind-pkcs11-libs-9.11.36-3.el8_6.7.i686.rpm
  • bind-libs-lite-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-export-devel-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-libs-debuginfo-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-sdb-chroot-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-devel-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-relay-debuginfo-4.3.6-47.el8_6.2.ppc64le.rpm
  • dhcp-debuginfo-4.3.6-47.el8_6.2.i686.rpm
  • bind-debugsource-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-devel-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-libs-lite-9.11.36-3.el8_6.7.s390x.rpm
  • bind-pkcs11-utils-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-pkcs11-utils-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • bind-libs-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-sdb-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-sdb-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-relay-4.3.6-47.el8_6.2.x86_64.rpm
  • dhcp-server-4.3.6-47.el8_6.2.s390x.rpm
  • bind-sdb-chroot-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-client-debuginfo-4.3.6-47.el8_6.2.s390x.rpm
  • bind-pkcs11-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-debugsource-4.3.6-47.el8_6.2.x86_64.rpm
  • bind-utils-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-devel-9.11.36-3.el8_6.7.s390x.rpm
  • bind-devel-9.11.36-3.el8_6.7.i686.rpm
  • bind-debugsource-9.11.36-3.el8_6.7.i686.rpm
  • bind-export-devel-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-libs-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-debuginfo-4.3.6-47.el8_6.2.s390x.rpm
  • bind-lite-devel-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-libs-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-debugsource-4.3.6-47.el8_6.2.s390x.rpm
  • bind-pkcs11-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-utils-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-debugsource-4.3.6-47.el8_6.2.aarch64.rpm
  • bind-libs-lite-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-lite-devel-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-pkcs11-devel-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-debugsource-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-utils-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-devel-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-debugsource-9.11.36-3.el8_6.7.s390x.rpm
  • bind-libs-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-pkcs11-libs-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-pkcs11-utils-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-debuginfo-4.3.6-47.el8_6.2.ppc64le.rpm
  • dhcp-relay-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-chroot-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-libs-9.11.36-3.el8_6.7.s390x.rpm
  • bind-export-libs-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • bind-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-pkcs11-utils-debuginfo-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-pkcs11-devel-9.11.36-3.el8_6.7.i686.rpm
  • bind-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-utils-9.11.36-3.el8_6.7.s390x.rpm
  • bind-chroot-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-sdb-chroot-9.11.36-3.el8_6.7.x86_64.rpm
  • dhcp-server-4.3.6-47.el8_6.2.ppc64le.rpm
  • python3-bind-9.11.36-3.el8_6.7.noarch.rpm
  • bind-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-utils-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-export-libs-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-relay-debuginfo-4.3.6-47.el8_6.2.s390x.rpm
  • bind-libs-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-sdb-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-relay-debuginfo-4.3.6-47.el8_6.2.i686.rpm
  • bind-utils-9.11.36-3.el8_6.7.ppc64le.rpm
  • dhcp-debugsource-4.3.6-47.el8_6.2.i686.rpm
  • bind-9.11.36-3.el8_6.7.s390x.rpm
  • bind-export-libs-debuginfo-9.11.36-3.el8_6.7.s390x.rpm
  • dhcp-libs-4.3.6-47.el8_6.2.ppc64le.rpm
  • bind-sdb-debuginfo-9.11.36-3.el8_6.7.i686.rpm
  • dhcp-server-debuginfo-4.3.6-47.el8_6.2.i686.rpm
  • bind-export-libs-9.11.36-3.el8_6.7.x86_64.rpm
  • bind-libs-9.11.36-3.el8_6.7.i686.rpm
  • bind-export-libs-9.11.36-3.el8_6.7.i686.rpm
  • bind-chroot-9.11.36-3.el8_6.7.s390x.rpm
  • bind-pkcs11-debuginfo-9.11.36-3.el8_6.7.aarch64.rpm
  • bind-pkcs11-debuginfo-9.11.36-3.el8_6.7.ppc64le.rpm
  • bind-pkcs11-libs-9.11.36-3.el8_6.7.ppc64le.rpm

Fixes

CVEs

References

Additional information