UBUNTU-CVE-2026-43909

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Source
https://ubuntu.com/security/CVE-2026-43909
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-43909
Upstream
  • CVE-2026-43909
Downstream
Published
2026-05-14T20:17:00Z
Modified
2026-06-16T21:45:33.474492685Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

References

Affected packages

Ubuntu:22.04:LTS
openimageio

Package

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

Affected ranges

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

Affected versions

2.*
2.2.10.1+dfsg-1build1
2.2.18.0+dfsg-1
2.2.18.0+dfsg-1build2
2.2.18.0+dfsg-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.2.18.0+dfsg-1ubuntu2",
            "binary_name": "libopenimageio2.2"
        },
        {
            "binary_version": "2.2.18.0+dfsg-1ubuntu2",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "2.2.18.0+dfsg-1ubuntu2",
            "binary_name": "python3-openimageio"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:25.10
openimageio

Package

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

Affected ranges

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

Affected versions

2.*
2.5.18.0+dfsg-1build1
2.5.18.0+dfsg-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.5.18.0+dfsg-1build2",
            "binary_name": "libopenimageio2.5"
        },
        {
            "binary_version": "2.5.18.0+dfsg-1build2",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "2.5.18.0+dfsg-1build2",
            "binary_name": "python3-openimageio"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:Pro:16.04:LTS
openimageio

Package

Name
openimageio
Purl
pkg:deb/ubuntu/openimageio?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.11~dfsg0-1ubuntu1+esm2

Affected versions

1.*
1.5.17~dfsg0-1ubuntu2
1.5.20~dfsg0-1ubuntu2
1.5.23~dfsg0-1ubuntu1
1.6.9~dfsg0-4ubuntu1
1.6.10~dfsg0-1ubuntu1
1.6.10~dfsg0-2ubuntu1
1.6.11~dfsg0-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.11~dfsg0-1ubuntu1+esm2",
            "binary_name": "libopenimageio1.6"
        },
        {
            "binary_version": "1.6.11~dfsg0-1ubuntu1+esm2",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "1.6.11~dfsg0-1ubuntu1+esm2",
            "binary_name": "python-openimageio"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:Pro:18.04:LTS
openimageio

Package

Name
openimageio
Purl
pkg:deb/ubuntu/openimageio?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.17~dfsg0-1ubuntu2+esm1

Affected versions

1.*
1.6.17~dfsg0-1ubuntu5
1.7.17~dfsg0-1ubuntu2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.7.17~dfsg0-1ubuntu2+esm1",
            "binary_name": "libopenimageio1.7"
        },
        {
            "binary_version": "1.7.17~dfsg0-1ubuntu2+esm1",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "1.7.17~dfsg0-1ubuntu2+esm1",
            "binary_name": "python-openimageio"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:Pro:20.04:LTS
openimageio

Package

Name
openimageio
Purl
pkg:deb/ubuntu/openimageio?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.12.0~dfsg0-1ubuntu0.1~esm1

Affected versions

2.*
2.0.10~dfsg0-1
2.0.11~dfsg0-1
2.0.12~dfsg0-1
2.0.12~dfsg0-1build1
2.0.12~dfsg0-1build2
2.1.10.1~dfsg0-5ubuntu4
2.1.10.1~dfsg0-5ubuntu5
2.1.12.0~dfsg0-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2.1.12.0~dfsg0-1ubuntu0.1~esm1",
            "binary_name": "libopenimageio2.1"
        },
        {
            "binary_version": "2.1.12.0~dfsg0-1ubuntu0.1~esm1",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "2.1.12.0~dfsg0-1ubuntu0.1~esm1",
            "binary_name": "python3-openimageio"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:Pro:24.04:LTS
openimageio

Package

Name
openimageio
Purl
pkg:deb/ubuntu/openimageio?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.17.0+dfsg-1.1ubuntu0.1~esm1

Affected versions

2.*
2.4.14.0+dfsg-1
2.4.16.0+dfsg-1
2.4.16.0+dfsg-1build1
2.4.17.0+dfsg-1
2.4.17.0+dfsg-1build1
2.4.17.0+dfsg-1.1build3
2.4.17.0+dfsg-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.17.0+dfsg-1.1ubuntu0.1~esm1",
            "binary_name": "libopenimageio2.4t64"
        },
        {
            "binary_version": "2.4.17.0+dfsg-1.1ubuntu0.1~esm1",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "2.4.17.0+dfsg-1.1ubuntu0.1~esm1",
            "binary_name": "python3-openimageio"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"
Ubuntu:Pro:26.04:LTS
openimageio

Package

Name
openimageio
Purl
pkg:deb/ubuntu/openimageio?arch=source&distro=esm-apps%2Fresolute

Affected ranges

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

Affected versions

2.*
2.5.18.0+dfsg-1build2
2.5.19.1+dfsg-1build1
2.5.19.1+dfsg-1build3
2.5.19.1+dfsg-1build5
2.5.19.1+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.5.19.1+dfsg-2ubuntu0.1~esm1",
            "binary_name": "libopenimageio2.5"
        },
        {
            "binary_version": "2.5.19.1+dfsg-2ubuntu0.1~esm1",
            "binary_name": "openimageio-tools"
        },
        {
            "binary_version": "2.5.19.1+dfsg-2ubuntu0.1~esm1",
            "binary_name": "python3-openimageio"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43909.json"