UBUNTU-CVE-2026-43996

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Source

https://ubuntu.com/security/CVE-2026-43996

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43996.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-43996

Upstream

CVE-2026-43996

Published

2026-05-14T20:17:00Z

Modified

2026-06-16T21:45:34.719219935Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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, the bounds check in TGAInput::decodepixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palettealloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. 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-2026-43996.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-2026-43996.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

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

1.6.11~dfsg0-1ubuntu1+esm2

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"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43996.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

Affected versions

1.*

1.6.17~dfsg0-1ubuntu5

1.7.17~dfsg0-1ubuntu2

1.7.17~dfsg0-1ubuntu2+esm1

Ecosystem specific

{
    "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-2026-43996.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

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

2.1.12.0~dfsg0-1ubuntu0.1~esm1

Ecosystem specific

{
    "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-2026-43996.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

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

2.4.17.0+dfsg-1.1ubuntu0.1~esm1

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"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43996.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

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

2.5.19.1+dfsg-2ubuntu0.1~esm1

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"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43996.json"