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GHSA-wq4j-5vp3-jcrx

Опубликовано: 05 авг. 2026
Источник: github
Github: Не прошло ревью
CVSS3: 4.9

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.

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.

EPSS

Процентиль: 33%
0.004
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-120

Связанные уязвимости

CVSS3: 4.9
ubuntu
4 дня назад

(A flaw was found in dhcp-server. A remote attacker with network access ...)

CVSS3: 4.9
redhat
20 дней назад

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.

CVSS3: 4.9
nvd
12 дней назад

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.

CVSS3: 4.9
debian
12 дней назад

A flaw was found in dhcp-server. A remote attacker with network access ...

EPSS

Процентиль: 33%
0.004
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-120