RHSA-2019:3525 — Security Advisory
Red Hat Security Advisory: dhcp security and bug fix update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 6, 2019
Updated · November 22, 2025
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: double-deletion of the released addresses in the dhcpv6 code leading to crash and possible DoS (CVE-2019-6470)
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.