UBUNTU-CVE-2026-57053

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Source
https://ubuntu.com/security/CVE-2026-57053
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-57053
Upstream
  • CVE-2026-57053
Downstream
Related
Published
2026-06-23T18:18:00Z
Modified
2026-07-09T21:32:00.287032307Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
  • 2.5 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicode_internal. The affected code is not present in libidn2.

References

Affected packages

Ubuntu:14.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=trusty

Affected ranges

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

Affected versions

1.*
1.28-1ubuntu1
1.28-1ubuntu2
1.28-1ubuntu2.1
1.28-1ubuntu2.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.28-1ubuntu2.2"
        },
        {
            "binary_name": "libidn11",
            "binary_version": "1.28-1ubuntu2.2"
        },
        {
            "binary_name": "libidn11-java",
            "binary_version": "1.28-1ubuntu2.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:16.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.28-1ubuntu2
1.32-3ubuntu1
1.32-3ubuntu1.1
1.32-3ubuntu1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.32-3ubuntu1.2"
        },
        {
            "binary_name": "libidn11",
            "binary_version": "1.32-3ubuntu1.2"
        },
        {
            "binary_name": "libidn11-java",
            "binary_version": "1.32-3ubuntu1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:18.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.33-2
1.33-2.1
1.33-2.1ubuntu1
1.33-2.1ubuntu1.1
1.33-2.1ubuntu1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.33-2.1ubuntu1.2"
        },
        {
            "binary_name": "libidn11",
            "binary_version": "1.33-2.1ubuntu1.2"
        },
        {
            "binary_name": "libidn11-java",
            "binary_version": "1.33-2.1ubuntu1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:20.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.33-2.2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.33-2.2ubuntu2"
        },
        {
            "binary_name": "libidn11",
            "binary_version": "1.33-2.2ubuntu2"
        },
        {
            "binary_name": "libidn11-java",
            "binary_version": "1.33-2.2ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:22.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.38-4ubuntu1.1

Affected versions

1.*
1.33-3
1.33-3build1
1.38-4
1.38-4build1
1.38-4ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.38-4ubuntu1.1"
        },
        {
            "binary_name": "libidn12",
            "binary_version": "1.38-4ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:24.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.42-1ubuntu0.1

Affected versions

1.*
1.41-1
1.42-1
1.42-1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.42-1ubuntu0.1"
        },
        {
            "binary_name": "libidn12",
            "binary_version": "1.42-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:25.10
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.43-1
1.43-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.43-2"
        },
        {
            "binary_name": "libidn12",
            "binary_version": "1.43-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"
Ubuntu:26.04:LTS
libidn

Package

Name
libidn
Purl
pkg:deb/ubuntu/libidn?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.43-2ubuntu0.26.04.1

Affected versions

1.*
1.43-2
1.43-2build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "idn",
            "binary_version": "1.43-2ubuntu0.26.04.1"
        },
        {
            "binary_name": "libidn12",
            "binary_version": "1.43-2ubuntu0.26.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57053.json"