USN-4168-1

Source
https://ubuntu.com/security/notices/USN-4168-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4168-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4168-1
Upstream
Related
Published
2019-10-29T12:47:20.811125Z
Modified
2025-10-13T04:34:58Z
Summary
libidn2 vulnerabilities
Details

It was discovered that Libidn2 incorrectly handled certain inputs. A attacker could possibly use this issue to impersonate domains. (CVE-2019-12290)

It was discovered that Libidn2 incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2019-18224)

References

Affected packages

Ubuntu:18.04:LTS / libidn2

Package

Name
libidn2
Purl
pkg:deb/ubuntu/libidn2@2.0.4-1.1ubuntu0.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.4-1.1ubuntu0.2

Affected versions

2.*

2.0.4-1
2.0.4-1.1
2.0.4-1.1build2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "idn2",
            "binary_version": "2.0.4-1.1ubuntu0.2"
        },
        {
            "binary_name": "libidn2-0",
            "binary_version": "2.0.4-1.1ubuntu0.2"
        },
        {
            "binary_name": "libidn2-0-dev",
            "binary_version": "2.0.4-1.1ubuntu0.2"
        },
        {
            "binary_name": "libidn2-dev",
            "binary_version": "2.0.4-1.1ubuntu0.2"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-12290"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-18224"
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}