UBUNTU-CVE-2019-12290

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Source
https://ubuntu.com/security/CVE-2019-12290
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12290.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-12290
Related
Published
2019-10-22T16:15:00Z
Modified
2024-10-15T14:06:50Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusion of certain punycoded Unicode characters (that would be discarded when converted first to a Unicode label and then back to an ASCII label), arbitrary domains can be impersonated.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libidn2-0

Package

Name
libidn2-0
Purl
pkg:deb/ubuntu/libidn2-0?arch=src?distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.9-1
0.9-1ubuntu0.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / libidn2-0

Package

Name
libidn2-0
Purl
pkg:deb/ubuntu/libidn2-0?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.10-3
0.10-3ubuntu0.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / libidn2

Package

Name
libidn2
Purl
pkg:deb/ubuntu/libidn2?arch=src?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",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.0.4-1.1ubuntu0.2",
            "binary_name": "idn2"
        },
        {
            "binary_version": "2.0.4-1.1ubuntu0.2",
            "binary_name": "idn2-dbgsym"
        },
        {
            "binary_version": "2.0.4-1.1ubuntu0.2",
            "binary_name": "libidn2-0"
        },
        {
            "binary_version": "2.0.4-1.1ubuntu0.2",
            "binary_name": "libidn2-0-dbgsym"
        },
        {
            "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",
            "binary_name": "libidn2-doc"
        }
    ]
}