CVE-2019-18224

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Source
https://cve.org/CVERecord?id=CVE-2019-18224
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-18224.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2019-18224
Downstream
Related
Published
2019-10-21T17:15:09.930Z
Modified
2026-06-18T04:04:58.661297403Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

idn2toascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.

References

Affected packages

Git / github.com/libidn/libidn2

Affected ranges

Type
GIT
Repo
https://github.com/libidn/libidn2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5c5d7ae143e06c31a6ba3f8eeaef7a3ec943ba55
Fixed
e4d1558aa2c1c04a05066ee8600f37603890ba8c
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.1"
        }
    ],
    "cpe": "cpe:2.3:a:gnu:libidn2:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

libidn2-0.*
libidn2-0.10
libidn2-0.11
libidn2-0.12
libidn2-0.13
libidn2-0.14
libidn2-0.15
libidn2-0.16
libidn2-0.3
libidn2-0.4
libidn2-0.5
libidn2-0.6
libidn2-0.7
libidn2-0.8
libidn2-0.9
libidn2-2.*
libidn2-2.0.0
libidn2-2.0.1
libidn2-2.0.2
libidn2-2.0.3
libidn2-2.0.4
libidn2-2.0.5
libidn2-2.1.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-18224.json"