Issued:
2023-05-16
Updated:
2023-05-16

RHSA-2023:3000 - Moderate: dhcp security and bug fix update

Synopsis

Moderate: dhcp security and bug fix update

Type/Severity

Security Advisory Moderate

Topic

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

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 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):

  • dhcp: option refcount overflow when leasequery is enabled leading to dhcpd abort (CVE-2022-2928)

  • dhcp: DHCP memory leak (CVE-2022-2929)

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 8.8 Release Notes linked from the References section.

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

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_648x86_64
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions8.8x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support8.8x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension8.8x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle8.10x86_64
Red Hat Enterprise Linux for Power, little endian8ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support8.8ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle8.10ppc64le
Red Hat Enterprise Linux for IBM z Systems8s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support8.8s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle8.10s390x
Red Hat Enterprise Linux for ARM 648aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support8.8aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle8.10aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions8.8ppc64le
Red Hat Enterprise Linux Server - TUS8.8x86_64

Updated Packages

  • dhcp-4.3.6-49.el8.src.rpm
  • dhcp-debugsource-4.3.6-49.el8.ppc64le.rpm
  • dhcp-server-4.3.6-49.el8.x86_64.rpm
  • dhcp-server-debuginfo-4.3.6-49.el8.i686.rpm
  • dhcp-libs-debuginfo-4.3.6-49.el8.i686.rpm
  • dhcp-debugsource-4.3.6-49.el8.s390x.rpm
  • dhcp-relay-4.3.6-49.el8.aarch64.rpm
  • dhcp-debuginfo-4.3.6-49.el8.s390x.rpm
  • dhcp-client-4.3.6-49.el8.s390x.rpm
  • dhcp-relay-debuginfo-4.3.6-49.el8.ppc64le.rpm
  • dhcp-client-debuginfo-4.3.6-49.el8.ppc64le.rpm
  • dhcp-debuginfo-4.3.6-49.el8.x86_64.rpm
  • dhcp-libs-4.3.6-49.el8.ppc64le.rpm
  • dhcp-relay-4.3.6-49.el8.s390x.rpm
  • dhcp-relay-4.3.6-49.el8.x86_64.rpm
  • dhcp-debugsource-4.3.6-49.el8.x86_64.rpm
  • dhcp-client-debuginfo-4.3.6-49.el8.i686.rpm
  • dhcp-server-debuginfo-4.3.6-49.el8.s390x.rpm
  • dhcp-client-4.3.6-49.el8.x86_64.rpm
  • dhcp-debugsource-4.3.6-49.el8.aarch64.rpm
  • dhcp-server-debuginfo-4.3.6-49.el8.x86_64.rpm
  • dhcp-debuginfo-4.3.6-49.el8.ppc64le.rpm
  • dhcp-libs-4.3.6-49.el8.s390x.rpm
  • dhcp-libs-4.3.6-49.el8.aarch64.rpm
  • dhcp-server-debuginfo-4.3.6-49.el8.aarch64.rpm
  • dhcp-server-4.3.6-49.el8.s390x.rpm
  • dhcp-debuginfo-4.3.6-49.el8.i686.rpm
  • dhcp-libs-4.3.6-49.el8.x86_64.rpm
  • dhcp-libs-debuginfo-4.3.6-49.el8.s390x.rpm
  • dhcp-debugsource-4.3.6-49.el8.i686.rpm
  • dhcp-relay-4.3.6-49.el8.ppc64le.rpm
  • dhcp-client-debuginfo-4.3.6-49.el8.s390x.rpm
  • dhcp-server-debuginfo-4.3.6-49.el8.ppc64le.rpm
  • dhcp-client-4.3.6-49.el8.aarch64.rpm
  • dhcp-common-4.3.6-49.el8.noarch.rpm
  • dhcp-libs-debuginfo-4.3.6-49.el8.ppc64le.rpm
  • dhcp-libs-debuginfo-4.3.6-49.el8.x86_64.rpm
  • dhcp-client-debuginfo-4.3.6-49.el8.x86_64.rpm
  • dhcp-client-debuginfo-4.3.6-49.el8.aarch64.rpm
  • dhcp-relay-debuginfo-4.3.6-49.el8.i686.rpm
  • dhcp-client-4.3.6-49.el8.ppc64le.rpm
  • dhcp-relay-debuginfo-4.3.6-49.el8.s390x.rpm
  • dhcp-relay-debuginfo-4.3.6-49.el8.x86_64.rpm
  • dhcp-relay-debuginfo-4.3.6-49.el8.aarch64.rpm
  • dhcp-server-4.3.6-49.el8.aarch64.rpm
  • dhcp-libs-4.3.6-49.el8.i686.rpm
  • dhcp-server-4.3.6-49.el8.ppc64le.rpm
  • dhcp-debuginfo-4.3.6-49.el8.aarch64.rpm
  • dhcp-libs-debuginfo-4.3.6-49.el8.aarch64.rpm

Fixes

CVEs

References

Additional information