CVE-2019-16770

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.

Weakness classification

• security-advisories@github.com: CWE-770
• nvd@nist.gov: CWE-770

Primary references

• security-advisories@github.com — Mitigation, Third Party Advisory
• security-advisories@github.com — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory