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GHSA-r6f8-x3mw-2qp5

Опубликовано: 18 нояб. 2025
Источник: github
Github: Не прошло ревью
CVSS3: 4.9

Описание

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability

EPSS

Процентиль: 4%
0.00018
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-825

Связанные уязвимости

CVSS3: 4.9
ubuntu
3 месяца назад

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability

CVSS3: 4.9
nvd
3 месяца назад

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability

msrc
3 месяца назад

Grub2: use-after-free in net_set_vlan

CVSS3: 4.9
debian
3 месяца назад

A vulnerability has been identified in the GRUB2 bootloader's network ...

CVSS3: 4.9
fstec
3 месяца назад

Уязвимость функции net_set_vlan() модуля Network загрузчика операционных систем Grub2, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 4%
0.00018
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-825