dhcp-libs: The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get t...
CVE-2021-25217 is fixed in 11 products on 1 platform, first by isc-dhcp-client 4.3.5-3ubuntu7.3, released May 25, 2021. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dhcp-client · RHEL 8 | 12:4.3.6-44.el8_4.1 | RHSA-2021:2359 | Jun 9, 2021 |
| dhcp-client · ol 8 | 12:4.3.6-44.el8_4.1 | ELSA-2021-2359 | Jun 10, 2021 |
| dhcp-common · RHEL 8 | 12:4.3.6-44.el8_4.1 | RHSA-2021:2359 | Jun 9, 2021 |
| dhcp-common · ol 8 | 12:4.3.6-44.el8_4.1 | ELSA-2021-2359 | Jun 10, 2021 |
| dhcp-libs · RHEL 8 | 12:4.3.6-44.el8_4.1 | RHSA-2021:2359 | Jun 9, 2021 |
| dhcp-libs · ol 8 | 12:4.3.6-44.el8_4.1 | ELSA-2021-2359 | Jun 10, 2021 |
| dhcp-relay · RHEL 8 | 12:4.3.6-44.el8_4.1 | RHSA-2021:2359 | Jun 9, 2021 |
| dhcp-relay · ol 8 | 12:4.3.6-44.el8_4.1 | ELSA-2021-2359 | Jun 10, 2021 |
| dhcp-server · RHEL 8 | 12:4.3.6-44.el8_4.1 | RHSA-2021:2359 | Jun 9, 2021 |
| dhcp-server · ol 8 | 12:4.3.6-44.el8_4.1 | ELSA-2021-2359 | Jun 10, 2021 |
| isc-dhcp-client · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-client 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-client · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-client 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
| isc-dhcp-client-ddns · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-client-ddns 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-client-ddns · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-client-ddns 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
| isc-dhcp-common · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-common 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-common · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-common 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
| isc-dhcp-relay · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-relay 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-relay · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-relay 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
| isc-dhcp-server · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-server 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-server · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-server 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
| isc-dhcp-server-ldap · Ubuntu 18.04.6 LTS (bionic) | 4.3.5-3ubuntu7.3 | isc-dhcp-server-ldap 4.3.5-3ubuntu7.3 | May 25, 2021 |
| isc-dhcp-server-ldap · Ubuntu 20.04 LTS (focal) | 4.4.1-2.1ubuntu5.20.04.2 | isc-dhcp-server-ldap 4.4.1-2.1ubuntu5.20.04.2 | May 25, 2021 |
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