CVE Database›Document archive›CVE-2019-18224

CVE-2019-18224

libidn2: heap-based buffer overflow in idn2_to_ascii_4i in lib/lookup.c

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Severity

Moderate

Red Hat Product Security

5.6

CVSS 3.0

Review impact separately from score.

Published · January 7, 2019

Updated · October 14, 2026

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.6
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE-122 · Heap-based Buffer Overflow