Описание
A flaw was found in dhcp-server. A remote attacker with network access to the OMAPI (Open Management Application Programming Interface) port, especially if not secured with TSIG (Transaction Signature) key authentication, could send a specially crafted lease creation request. This request, containing an overly long InfiniBand MAC address, triggers a buffer overflow in the print_hw_addr() function. Successful exploitation leads to a persistent denial of service (DoS), causing the dhcpd service to crash and preventing it from restarting without manual intervention.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/noble | deferred | 2026-10-22 |
| esm-apps/resolute | deferred | 2026-10-22 |
| esm-infra-legacy/trusty | deferred | 2026-10-22 |
| esm-infra-legacy/xenial | deferred | 2026-10-22 |
| esm-infra/bionic | deferred | 2026-10-22 |
| esm-infra/focal | deferred | 2026-10-22 |
| jammy | deferred | 2026-10-22 |
| noble | deferred | 2026-10-22 |
| resolute | deferred | 2026-10-22 |
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Ссылки на источники
EPSS
4.9 Medium
CVSS3
Связанные уязвимости
A flaw was found in dhcp-server. A remote attacker with network access to the OMAPI (Open Management Application Programming Interface) port, especially if not secured with TSIG (Transaction Signature) key authentication, could send a specially crafted lease creation request. This request, containing an overly long InfiniBand MAC address, triggers a buffer overflow in the `print_hw_addr()` function. Successful exploitation leads to a persistent denial of service (DoS), causing the `dhcpd` service to crash and preventing it from restarting without manual intervention.
A flaw was found in dhcp-server. A remote attacker with network access to the OMAPI (Open Management Application Programming Interface) port, especially if not secured with TSIG (Transaction Signature) key authentication, could send a specially crafted lease creation request. This request, containing an overly long InfiniBand MAC address, triggers a buffer overflow in the `print_hw_addr()` function. Successful exploitation leads to a persistent denial of service (DoS), causing the `dhcpd` service to crash and preventing it from restarting without manual intervention.
A flaw was found in dhcp-server. A remote attacker with network access ...
A flaw was found in dhcp-server. A remote attacker with network access to the OMAPI (Open Management Application Programming Interface) port, especially if not secured with TSIG (Transaction Signature) key authentication, could send a specially crafted lease creation request. This request, containing an overly long InfiniBand MAC address, triggers a buffer overflow in the `print_hw_addr()` function. Successful exploitation leads to a persistent denial of service (DoS), causing the `dhcpd` service to crash and preventing it from restarting without manual intervention.
ALT-PU-2026-16240: package `dhcp` update to version 4.4.3.P1-alt5
EPSS
4.9 Medium
CVSS3