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CVE-2021-20271

Опубликовано: 11 мар. 2021
Источник: redhat
CVSS3: 6.7
EPSS Низкий

Описание

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

Отчет

To exploit this flaw, an attacker must either compromise an RPM repository or convince an administrator to install an untrusted RPM. It is strongly recommended to only use RPMs from trusted repositories.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 6rpmOut of support scope
Red Hat Enterprise Linux 9rpmNot affected
Red Hat Enterprise Linux 7rpmFixedRHSA-2021:478523.11.2021
Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)rpmFixedRHSA-2021:477123.11.2021
Red Hat Enterprise Linux 7.6 Telco Extended Update SupportrpmFixedRHSA-2021:477123.11.2021
Red Hat Enterprise Linux 7.6 Update Services for SAP SolutionsrpmFixedRHSA-2021:477123.11.2021
Red Hat Enterprise Linux 7.7 Advanced Update SupportrpmFixedRHSA-2021:497507.12.2021
Red Hat Enterprise Linux 7.7 Telco Extended Update SupportrpmFixedRHSA-2021:497507.12.2021
Red Hat Enterprise Linux 7.7 Update Services for SAP SolutionsrpmFixedRHSA-2021:497507.12.2021
Red Hat Enterprise Linux 8rpmFixedRHSA-2021:257429.06.2021

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-345
https://bugzilla.redhat.com/show_bug.cgi?id=1934125rpm: Signature checks bypass via corrupted rpm package

EPSS

Процентиль: 37%
0.00155
Низкий

6.7 Medium

CVSS3

Связанные уязвимости

CVSS3: 7
ubuntu
больше 4 лет назад

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

CVSS3: 7
nvd
больше 4 лет назад

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

CVSS3: 7
msrc
больше 4 лет назад

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package whose signature header was modified to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity confidentiality and system availability.

CVSS3: 7
debian
больше 4 лет назад

A flaw was found in RPM's signature check functionality when reading a ...

CVSS3: 7
github
больше 3 лет назад

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

EPSS

Процентиль: 37%
0.00155
Низкий

6.7 Medium

CVSS3