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CVE-2026-40211

Опубликовано: 25 июн. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 5.3

Описание

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.

РелизСтатусПримечание
devel

needs-triage

esm-apps-legacy/xenial

needs-triage

esm-apps/bionic

needs-triage

esm-apps/focal

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

jammy

needs-triage

noble

needs-triage

questing

ignored

end of life, was needs-triage

Показывать по

EPSS

Процентиль: 22%
0.00296
Низкий

5.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.3
nvd
около 2 месяцев назад

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.

CVSS3: 5.3
debian
около 2 месяцев назад

An attacker can send crafted DNS over HTTP/3 queries, triggering an ex ...

CVSS3: 5.3
github
около 2 месяцев назад

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.

suse-cvrf
13 дней назад

Security update for dnsdist

EPSS

Процентиль: 22%
0.00296
Низкий

5.3 Medium

CVSS3