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CVE-2021-23017

Опубликовано: 11 июн. 2021
Источник: msrc
CVSS3: 7.7
EPSS Высокий

Описание

A security issue in nginx resolver was identified which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite resulting in worker process crash or potential other impact.

FAQ

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?

One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

EPSS

Процентиль: 99%
0.73166
Высокий

7.7 High

CVSS3

Связанные уязвимости

CVSS3: 7.7
ubuntu
больше 4 лет назад

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.

CVSS3: 8.1
redhat
больше 4 лет назад

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.

CVSS3: 7.7
nvd
больше 4 лет назад

A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.

CVSS3: 7.7
debian
больше 4 лет назад

A security issue in nginx resolver was identified, which might allow a ...

suse-cvrf
больше 4 лет назад

Security update for nginx

EPSS

Процентиль: 99%
0.73166
Высокий

7.7 High

CVSS3