In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade dhcp-clientUpgrade dhcp-serverUpgrade dhcp-commonUpgrade dhcp-relayUpgrade dhcp-libs | May 15, 2023 | Oct 7, 2022 |
| Alpine Linux | — | Upgrade dhcp | Mar 26, 2024 | Oct 7, 2022 |
| Amazon Linux Ami 2 | — | Upgrade dhcpUpgrade dhcp-develUpgrade dhclientUpgrade dhcp-commonUpgrade dhcp-libsUpgrade dhcp-debuginfo | Nov 10, 2022 | Oct 7, 2022 |
| Centos_linux | — | Upgrade dhcp-commonUpgrade dhcp-clientUpgrade dhcp-relay-debuginfoUpgrade dhcp-server-debuginfoUpgrade dhcp-libsUpgrade dhcp-debugsourceUpgrade dhcp-debuginfoUpgrade dhcp-serverUpgrade dhcp-client-debuginfoUpgrade dhcp-libs-debuginfoUpgrade dhcp-relay | May 15, 2023 | Oct 7, 2022 |
| Debian | — | Upgrade isc-dhcp | Oct 12, 2022 | Oct 7, 2022 |
| Gentoo Linux | — | Upgrade net-misc/dhcp. | May 4, 2023 | Oct 7, 2022 |
| Huawei Euleros 2_0_sp10 | — | Upgrade dhcp | Dec 22, 2022 | Oct 7, 2022 |
| Huawei Euleros 2_0_sp11 | — | Upgrade dhcp | Jan 6, 2023 | Oct 7, 2022 |
| Huawei Euleros 2_0_sp5 | — | Upgrade dhcpUpgrade dhclientUpgrade dhcp-commonUpgrade dhcp-libs | Mar 9, 2023 | Oct 7, 2022 |
| Huawei Euleros 2_0_sp8 | — | Upgrade dhcp-serverUpgrade dhcp-clientUpgrade dhcp-relayUpgrade dhcp-commonUpgrade dhcp-libs | Dec 9, 2022 | Oct 7, 2022 |
| Huawei Euleros 2_0_sp9 | — | Upgrade dhcp | Jan 9, 2023 | Oct 7, 2022 |
| Oracle_linux | — | Upgrade dhcp-libsUpgrade dhcp-serverUpgrade dhcp-commonUpgrade dhcp-relayUpgrade dhcp-client | May 17, 2023 | Oct 5, 2022 |
| Redhat_linux | — | Upgrade dhcp-relay-debuginfoNo solution existsUpgrade dhcp-clientUpgrade dhcp-serverUpgrade dhcp-libs-debuginfoUpgrade dhcp-client-debuginfoUpgrade dhcp-commonUpgrade dhcp-relayUpgrade dhcp-debugsourceUpgrade dhcp-debuginfoUpgrade dhcp-server-debuginfoUpgrade dhcp-libs | May 15, 2023 | Oct 7, 2022 |
| Suse | — | Upgrade dhcp-relayUpgrade dhcp-serverUpgrade dhcpUpgrade dhcp-clientUpgrade dhcp-develUpgrade dhcp-doc | Nov 16, 2022 | Oct 7, 2022 |
| Ubuntu | — | Upgrade isc-dhcp-server (Ubuntu Pro)Upgrade isc-dhcp-client (Ubuntu Pro)Upgrade isc-dhcp-clientUpgrade isc-dhcp-server | Oct 6, 2022 | Oct 5, 2022 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Oct 7, 2022 |
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