Описание
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.
A flaw was found in rubygem-puma. A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough.
Отчет
Red Hat CloudForms uses affected RubyGem Puma, however, not vulnerable since after increasing multiple keepalive connections compare to threads available; additional connections have not waited long. Red Hat Gluster Storage Web Administration component uses affected RubyGem Puma.
Меры по смягчению последствий
Reverse proxies in front of Puma could be configured to always allow less than X keepalive connections to a Puma cluster or process, where X is the number of threads configured in Puma's thread pool.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| CloudForms Management Engine 5 | rubygem-puma | Will not fix | ||
| Red Hat 3scale API Management Platform 2 | rubygem-puma | Not affected | ||
| Red Hat Software Collections | rh-ror50-rubygem-puma | Will not fix | ||
| Red Hat Storage 3 | rubygem-puma | Affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.
In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client coul ...
A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack
EPSS
7.5 High
CVSS3