CVE catalog
CVE-2017-7559
UBUNTU-CVE-2017-7559
- Severity
- Medium · CVSS 6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.91% · Oct 27, 2026
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
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 | 1.4.18-1 | vulnerable |
| Debian | undertow | 14 | 1.4.20-1 | vulnerable |
| Debian | undertow | 14 | 1.4.21-1 | vulnerable |
| Debian | undertow | 14 | 1.4.21-2 | vulnerable |
| Debian | undertow | 14 | 1.4.22-1 | 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 | 1.4.23-1 | 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 | 1.4.23-1 | Not reported | DEBIAN-CVE-2017-7559 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: