CVE-2017-2666
undertow - security update
6.5
MEDIUM
CVSS 3.1
EPSS 1.4%
Description
It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. 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.
How to fix CVE-2017-2666
To remediate CVE-2017-2666, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.18-1 or later
- —upgrade to 1.4.8-1+deb9u1 or later
- —upgrade to 1.3.31 or later
Is CVE-2017-2666 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.4.18-1
- from 0, < 1.4.8-1+deb9u1
- from 0, < 1.3.31
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |