RHSA-2021:2420: Important: dhcp security update
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: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217) 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:2420?
The severity of RHSA-2021:2420 is classified as important.
How do I fix RHSA-2021:2420?
To resolve RHSA-2021:2420, update the affected dhcp packages to version 4.3.6-40.el8_2.2 or later.
What packages are affected by RHSA-2021:2420?
The affected packages in RHSA-2021:2420 include dhcp, dhcp-client, dhcp-server, and others related to the DHCP services.
Is RHSA-2021:2420 exploitable?
Yes, RHSA-2021:2420 may be exploitable under certain conditions, making it vital to apply the updates.
When was RHSA-2021:2420 released?
RHSA-2021:2420 was released to address vulnerabilities in the DHCP service on July 14, 2021.