VDB
DEBIAN-CVE-2019-16770
DEBIAN-CVE-2019-16770
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | puma | 0, 0, 0 |
| Debian:14 | puma | 0, 0, 0 |
| Debian:12 | puma | 0, 0, 0 |
| Debian:11 | puma | 0, 0, 0 |
Exploit Intelligence
- file.History.html (github-poc)
Timeline
- Dec 5, 2019 CVE Published
- Apr 28, 2026 CVE Updated