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CVE-2021-20225

Опубликовано: 02 мар. 2021
Источник: redhat
CVSS3: 7.5

Описание

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

A flaw was found in grub2. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 7fwupdAffected
Red Hat Enterprise Linux 7fwupdateAffected
Red Hat Enterprise Linux 7shimNot affected
Red Hat Enterprise Linux 7grub2FixedRHSA-2021:069902.03.2021
Red Hat Enterprise Linux 7.2 Advanced Update Supportgrub2FixedRHSA-2021:070402.03.2021
Red Hat Enterprise Linux 7.3 Advanced Update Supportgrub2FixedRHSA-2021:070302.03.2021
Red Hat Enterprise Linux 7.4 Advanced Update Supportgrub2FixedRHSA-2021:070202.03.2021
Red Hat Enterprise Linux 7.4 Telco Extended Update Supportgrub2FixedRHSA-2021:070202.03.2021
Red Hat Enterprise Linux 7.4 Update Services for SAP Solutionsgrub2FixedRHSA-2021:070202.03.2021
Red Hat Enterprise Linux 7.6 Extended Update Supportgrub2FixedRHSA-2021:070102.03.2021

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-787
https://bugzilla.redhat.com/show_bug.cgi?id=1924696grub2: Heap out-of-bounds write in short form option parser

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 6.7
ubuntu
больше 4 лет назад

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS3: 6.7
nvd
больше 4 лет назад

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS3: 6.7
msrc
больше 4 лет назад

Описание отсутствует

CVSS3: 6.7
debian
больше 4 лет назад

A flaw was found in grub2 in versions prior to 2.06. The option parser ...

CVSS3: 6.7
github
около 3 лет назад

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

7.5 High

CVSS3