Описание
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
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 |
focal | not-affected | does not affect Secure Boot |
jammy | not-affected | does not affect Secure Boot |
noble | not-affected | does not affect Secure Boot |
oracular | not-affected | does not affect Secure Boot |
plucky | not-affected | does not affect Secure Boot |
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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 | |
focal | ignored | end of standard support, was needs-triage |
jammy | needs-triage | |
noble | needs-triage | |
oracular | ignored | end of life, was needs-triage |
plucky | 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 | |
focal | ignored | end of standard support, was needs-triage |
jammy | needs-triage | |
noble | needs-triage | |
oracular | ignored | end of life, was needs-triage |
plucky | needs-triage | |
upstream | needs-triage |
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Ссылки на источники
6.7 Medium
CVSS3
Связанные уязвимости
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
A flaw was found in grub2. When reading tar files, grub2 allocates an ...
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.
Уязвимость компонента tar Handler загрузчика операционных систем Grub2, позволяющая нарушителю обойти механизм безопасной загрузки
6.7 Medium
CVSS3