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CVE-2026-4437

Опубликовано: 22 мар. 2026
Источник: msrc
CVSS3: 5.9
EPSS Низкий

Описание

gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response

EPSS

Процентиль: 14%
0.00046
Низкий

5.9 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.5
ubuntu
15 дней назад

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.

CVSS3: 6.5
redhat
20 дней назад

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.

CVSS3: 7.5
nvd
20 дней назад

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.

CVSS3: 7.5
debian
20 дней назад

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.co ...

CVSS3: 7.5
github
20 дней назад

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.

EPSS

Процентиль: 14%
0.00046
Низкий

5.9 Medium

CVSS3