RHSA-2021:2414: Important: dhcp security update
First published: Mon Jun 14 2021(Updated: )
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.<br>Security Fix(es):<br><li> 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)</li> 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 | Affected Version | How to fix |
|---|---|---|
| redhat/dhcp | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhclient | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-common | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-debuginfo | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-debuginfo | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-devel | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-devel | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-libs | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-libs | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhclient | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-common | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-debuginfo | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-devel | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
| redhat/dhcp-libs | <4.2.5-58.el7_4.5 | 4.2.5-58.el7_4.5 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:2414?
The severity of RHSA-2021:2414 is classified as important.
How do I fix RHSA-2021:2414?
To fix RHSA-2021:2414, update the affected packages to version 4.2.5-58.el7_4.5.
What packages are affected by RHSA-2021:2414?
The affected packages include dhcp, dhclient, dhcp-common, dhcp-devel, dhcp-libs, and dhcp-debuginfo.
What is the risk of not addressing RHSA-2021:2414?
Not addressing RHSA-2021:2414 may expose systems to vulnerabilities related to the Dynamic Host Configuration Protocol.
When was RHSA-2021:2414 issued?
RHSA-2021:2414 was issued to address security vulnerabilities identified in the packages.
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