CVE catalog
CVE-2017-2670
UBUNTU-CVE-2017-2670
- Severity
- High · CVSS 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 3.62% · Oct 25, 2026
It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | undertow | 14 | 1.3.11-1 | vulnerable |
| Debian | undertow | 14 | 1.3.16-1 | vulnerable |
| Debian | undertow | 14 | 1.3.19-1 | vulnerable |
| Debian | undertow | 14 | 1.3.21-1 | vulnerable |
| Debian | undertow | 14 | 1.3.23-1 | vulnerable |
| Debian | undertow | 14 | 1.3.4-1 | vulnerable |
| Debian | undertow | 14 | 1.3.5-1 | vulnerable |
| Debian | undertow | 14 | 1.3.7-1 | vulnerable |
| Debian | undertow | 14 | 1.4.0-1 | vulnerable |
| Debian | undertow | 14 | 1.4.1-1 | vulnerable |
| Debian | undertow | 14 | 1.4.3-1 | vulnerable |
| Debian | undertow | 14 | 1.4.4-1 | vulnerable |
| Debian | undertow | 14 | 1.4.6-1 | vulnerable |
| Debian | undertow | 14 | 1.4.7-1 | vulnerable |
| Debian | undertow | 14 | 1.4.8-1 | vulnerable |
| Debian | undertow | 14 | 1.4.18-1 | fixed |
| Ubuntu | undertow | pro | 2.3.8-2 | vulnerable |
| Ubuntu | undertow | pro | 2.3.8-2ubuntu0.1~esm1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | undertow | deb | 14 | 1.4.18-1 | Not reported | DEBIAN-CVE-2017-2670 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: