CVE-2019-16770 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5