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UBUNTU-CVE-2026-43909 (CVE-2026-43909)

Vulnerability from osv_ubuntu – Published: 2026-05-14 20:17 – Updated: 2026-06-16 19:55 – Source website
VLAI
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.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "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",
            "binary_version": "1.6.11~dfsg0-1ubuntu1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@1.6.11~dfsg0-1ubuntu1+esm2?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.11~dfsg0-1ubuntu1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "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",
            "binary_version": "1.7.17~dfsg0-1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@1.7.17~dfsg0-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.17~dfsg0-1ubuntu2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.17~dfsg0-1ubuntu5",
        "1.7.17~dfsg0-1ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "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",
            "binary_version": "2.1.12.0~dfsg0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@2.1.12.0~dfsg0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.12.0~dfsg0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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": {
        "binaries": [
          {
            "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",
            "binary_version": "2.2.18.0+dfsg-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@2.2.18.0+dfsg-1ubuntu2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "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",
            "binary_version": "2.4.17.0+dfsg-1.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@2.4.17.0+dfsg-1.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.17.0+dfsg-1.1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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_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",
            "binary_version": "2.5.18.0+dfsg-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@2.5.18.0+dfsg-1build2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.18.0+dfsg-1build1",
        "2.5.18.0+dfsg-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "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",
            "binary_version": "2.5.19.1+dfsg-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "openimageio",
        "purl": "pkg:deb/ubuntu/openimageio@2.5.19.1+dfsg-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.19.1+dfsg-2ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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"
      ]
    }
  ],
  "aliases": [],
  "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 \u0026input[i * 4] first), but the subsequent write operations at lines 46\u201349 target the same wrapped offset \u2014 making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.",
  "id": "UBUNTU-CVE-2026-43909",
  "modified": "2026-06-16T19:55:00Z",
  "published": "2026-05-14T20:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43909"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43909"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-g267-j53j-5258"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-43909"
  ]
}



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