Описание
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
| 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
4.8 Medium
CVSS3
Связанные уязвимости
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
Grub2: grub2: out-of-bounds write via malicious usb device
A vulnerability has been identified in the GRUB (Grand Unified Bootloa ...
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
Уязвимость загрузчика операционных систем Grub2, связанная с неверным расчетом размера буфера при обработке получаемых пакетов, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
4.8 Medium
CVSS3