CVE-2019-18224
CRITICAL9.8EPSS 2.2%libidn2 - security update
Published: 10/21/2019Modified: 12/3/2025
Also known as:ALPINE-CVE-2019-18224DEBIAN-CVE-2019-18224
Description
idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.
Affected packages (3)
- Alpine/libidn2from 0, < 2.1.1-r0
- Debian/libidn2from 0, < 2.2.0-1
- Debian/libidn2from 0, < 2.0.5-1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |