CVE-2019-16201
7.5
HIGH
CVSS 3.1
EPSS 0.61%
Description
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.
How to fix CVE-2019-16201
To remediate CVE-2019-16201, upgrade the affected package to a fixed version below.
- Alpine/ruby—upgrade to 2.5.7-r0 or later
- —upgrade to 9.3.9.0+ds-1 or later
Is CVE-2019-16201 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.5.7-r0
- from 0, < 9.3.9.0+ds-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |