UBUNTU-CVE-2025-64720

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Source
https://ubuntu.com/security/CVE-2025-64720
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-64720
Upstream
Downstream
Related
Published
2025-11-25T00:15:00Z
Modified
2026-04-22T16:08:24.032643Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in pngimagereadcomposite when processing palette images with PNGFLAGOPTIMIZEALPHA enabled. The palette compositing code in pnginitread_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

References

Affected packages

Ubuntu:22.04:LTS
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.37-3ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.37-3ubuntu0.1

Affected versions

1.*
1.6.37-3build4
1.6.37-3build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.37-3ubuntu0.1",
            "binary_name": "libpng-tools"
        },
        {
            "binary_version": "1.6.37-3ubuntu0.1",
            "binary_name": "libpng16-16"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"
Ubuntu:24.04:LTS
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.43-5ubuntu0.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.43-5ubuntu0.1

Affected versions

1.*
1.6.40-1
1.6.40-2
1.6.40-3
1.6.42-1
1.6.43-1
1.6.43-3
1.6.43-5build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.43-5ubuntu0.1",
            "binary_name": "libpng-tools"
        },
        {
            "binary_version": "1.6.43-5ubuntu0.1",
            "binary_name": "libpng16-16t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"
Ubuntu:25.10
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.50-1ubuntu0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.50-1ubuntu0.1

Affected versions

1.*
1.6.47-1.1
1.6.48-1
1.6.49-1~exp1
1.6.50-1~exp1
1.6.50-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.50-1ubuntu0.1",
            "binary_name": "libpng-tools"
        },
        {
            "binary_version": "1.6.50-1ubuntu0.1",
            "binary_name": "libpng16-16t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"
Ubuntu:Pro:16.04:LTS
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.20-2ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.20-2ubuntu0.1~esm2

Affected versions

1.*
1.6.20-2
1.6.20-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.20-2ubuntu0.1~esm2",
            "binary_name": "libpng16-16"
        },
        {
            "binary_version": "1.6.20-2ubuntu0.1~esm2",
            "binary_name": "libpng16-devtools"
        },
        {
            "binary_version": "1.6.20-2ubuntu0.1~esm2",
            "binary_name": "libpng16-tools"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"
Ubuntu:Pro:18.04:LTS
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.34-1ubuntu0.18.04.2+esm1

Affected versions

1.*
1.6.34-1
1.6.34-1ubuntu0.18.04.1
1.6.34-1ubuntu0.18.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1",
            "binary_name": "libpng-tools"
        },
        {
            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1",
            "binary_name": "libpng16-16"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"
Ubuntu:Pro:20.04:LTS
libpng1.6

Package

Name
libpng1.6
Purl
pkg:deb/ubuntu/libpng1.6@1.6.37-2ubuntu0.1~esm1?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.37-2ubuntu0.1~esm1

Affected versions

1.*
1.6.37-1
1.6.37-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.37-2ubuntu0.1~esm1",
            "binary_name": "libpng-tools"
        },
        {
            "binary_version": "1.6.37-2ubuntu0.1~esm1",
            "binary_name": "libpng16-16"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64720.json"