Описание
A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | does not affect Secure Boot |
| esm-infra-legacy/trusty | ignored | update incompatible with kernel |
| esm-infra/bionic | not-affected | does not affect Secure Boot |
| esm-infra/focal | not-affected | does not affect Secure Boot |
| esm-infra/xenial | not-affected | does not affect Secure Boot |
| jammy | not-affected | does not affect Secure Boot |
| noble | not-affected | does not affect Secure Boot |
| plucky | not-affected | does not affect Secure Boot |
| questing | not-affected | does not affect Secure Boot |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-infra-legacy/trusty | ignored | update incompatible with kernel |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| esm-infra/xenial | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| plucky | ignored | end of life, was needs-triage |
| questing | needs-triage | |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | needs-triage | |
| esm-infra/xenial | needs-triage | |
| jammy | needs-triage | |
| noble | needs-triage | |
| plucky | ignored | end of life, was needs-triage |
| questing | needs-triage | |
| upstream | needs-triage |
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EPSS
4.9 Medium
CVSS3
Связанные уязвимости
A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.
Grub2: missing unregister call for normal_exit command may lead to use-after-free
A vulnerability in the GRUB2 bootloader has been identified in the nor ...
A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.
Уязвимость функции normal_exit() загрузчика операционных систем Grub2, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
4.9 Medium
CVSS3