ALPINE-CVE-2019-16201 — Vulnetix

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ALPINE-CVE-2019-16201 PUBLISHED CVSS 7.5 HIGH

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.

Risk Scores

CVSS v3.1

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
Alpine:v3.21	ruby	0, 0, 0
Alpine:v3.11	ruby	1.8.7_p352-r0, 1.8.7_p352-r1, 1.8.7_p358-r1
Alpine:v3.8	ruby	2.1.5-r0, 0, 1.8.7_p160-r2
Alpine:v3.22	ruby	0, 0, 0
Alpine:v3.12	ruby	2.6.4-r0, 2.4.3-r0, 2.5.0-r0
Alpine:v3.20	ruby	0, 0, 0
Alpine:v3.15	ruby	1.9.3, 2.6.4-r0, 2.6.3-r2
Alpine:v3.18	ruby	2.3.3-r2, 2.4.1-r5, *
Alpine:v3.10	ruby	2.5.5-r0, 2.5.5-r0, 2.5.3-r2
Alpine:v3.19	ruby	2.3.3-r0, 0, 1.8.7_p160-r2
Alpine:v3.13	ruby	2.5.5-r0, 1.9.3, 1.9.3
Alpine:v3.14	ruby	1.8.7_p352-r0, 1.9.3, 1.9.3
Alpine:v3.7	ruby	1.9.3_p286-r0, 0, *
Alpine:v3.16	ruby	1.9.3, 1.9.3, 1.9.3
Alpine:v3.23	ruby	0, 0, 0
Alpine:v3.17	ruby	2.4.3-r0, 2.4.2-r1, 2.4.2-r0
Alpine:v3.9	ruby	2.4.3-r0, 2.5.0-r0, 2.5.0-r1

Timeline

Nov 26, 2019 CVE Published
Dec 3, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2019-16201 advisory

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