UnratedFix available

UBUNTU-CVE-2026-84449

Type: advisorySource: OSV1 source record

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.19.6, Op_RGB24_32_to_YCbCr::convert_colorspace() stores image-plane strides in an integer width that can overflow for extremely large RGB images created through heif_image_create() and heif_image_add_plane(). The resulting wrapped stride causes the conversion loop in libheif/color-conversion/rgb2yuv.cc to compute an invalid input pointer and read beyond the allocated interleaved plane while heif_context_encode_image() performs RGB-to-YCbCr conversion. This can crash the encoding process. This issue is fixed in version 1.19.6.

Announced 18 Sept 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-84449

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:UBUNTU-CVE-2026-84449

libheif

Source reference: /affected/0/package/name

Affected versions: 1.1.0-2
Source reference: /affected/0/versions
1.1.0-2ubuntu0.1~esm1
Source reference: /affected/0/versions
1.1.0-2ubuntu0.1~esm2
Source reference: /affected/0/versions
1.1.0-2ubuntu0.1~esm3
Source reference: /affected/0/versions
1.1.0-2ubuntu0.1~esm4
Source reference: /affected/0/versions
Fixed versions: 1.1.0-2ubuntu0.1~esm5
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

libheif

Source reference: /affected/1/package/name

Affected versions: 1.5.0-1build1
Source reference: /affected/1/versions
1.5.1-1
Source reference: /affected/1/versions
1.5.1-1build1
Source reference: /affected/1/versions
1.6.0-1
Source reference: /affected/1/versions
1.6.1-1
Source reference: /affected/1/versions
1.6.1-1build1
Source reference: /affected/1/versions
1.6.1-1ubuntu0.1~esm1
Source reference: /affected/1/versions
1.6.1-1ubuntu0.1~esm2
Source reference: /affected/1/versions
1.6.1-1ubuntu0.1~esm3
Source reference: /affected/1/versions
1.6.1-1ubuntu0.1~esm4
Source reference: /affected/1/versions
Fixed versions: 1.6.1-1ubuntu0.1~esm5
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

libheif

Source reference: /affected/2/package/name

Affected versions: 1.11.0-1
Source reference: /affected/2/versions
1.12.0-2build1
Source reference: /affected/2/versions
1.12.0-2ubuntu0.1~esm1
Source reference: /affected/2/versions
1.12.0-2ubuntu0.1~esm2
Source reference: /affected/2/versions
1.12.0-2ubuntu0.1~esm3
Source reference: /affected/2/versions
1.12.0-2ubuntu0.1~esm4
Source reference: /affected/2/versions
Fixed versions: 1.12.0-2ubuntu0.1~esm5
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

libheif

Source reference: /affected/3/package/name

Affected versions: 1.16.2-2ubuntu1
Source reference: /affected/3/versions
1.17.1-1ubuntu2
Source reference: /affected/3/versions
1.17.1-1ubuntu3
Source reference: /affected/3/versions
1.17.4-1ubuntu1
Source reference: /affected/3/versions
1.17.6-1ubuntu1
Source reference: /affected/3/versions
1.17.6-1ubuntu2
Source reference: /affected/3/versions
1.17.6-1ubuntu3
Source reference: /affected/3/versions
1.17.6-1ubuntu4
Source reference: /affected/3/versions
1.17.6-1ubuntu4.1
Source reference: /affected/3/versions
1.17.6-1ubuntu4.2
Source reference: /affected/3/versions
1.17.6-1ubuntu4.3
Source reference: /affected/3/versions
1.17.6-1ubuntu4.4
Source reference: /affected/3/versions
1.17.6-1ubuntu4.5
Source reference: /affected/3/versions
1.17.6-1ubuntu4.6
Source reference: /affected/3/versions
1.17.6-1ubuntu4.7
Source reference: /affected/3/versions
1.17.6-1ubuntu4.8
Source reference: /affected/3/versions
Fixed versions: 1.17.6-1ubuntu4.9
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
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        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
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          }
        ]
      }
    ],
    "package": {
      "name": "libheif",
      "purl": "pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Fbionic",
      "ecosystem": "Ubuntu:Pro:18.04:LTS"
    },
    "versions": [
      "1.1.0-2",
      "1.1.0-2ubuntu0.1~esm1",
      "1.1.0-2ubuntu0.1~esm2",
      "1.1.0-2ubuntu0.1~esm3",
      "1.1.0-2ubuntu0.1~esm4"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84449.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libheif-examples",
          "binary_version": "1.1.0-2ubuntu0.1~esm5"
        },
        {
          "binary_name": "libheif1",
          "binary_version": "1.1.0-2ubuntu0.1~esm5"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.6.1-1ubuntu0.1~esm5"
          }
        ]
      }
    ],
    "package": {
      "name": "libheif",
      "purl": "pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Ffocal",
      "ecosystem": "Ubuntu:Pro:20.04:LTS"
    },
    "versions": [
      "1.5.0-1build1",
      "1.5.1-1",
      "1.5.1-1build1",
      "1.6.0-1",
      "1.6.1-1",
      "1.6.1-1build1",
      "1.6.1-1ubuntu0.1~esm1",
      "1.6.1-1ubuntu0.1~esm2",
      "1.6.1-1ubuntu0.1~esm3",
      "1.6.1-1ubuntu0.1~esm4"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84449.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "heif-gdk-pixbuf",
          "binary_version": "1.6.1-1ubuntu0.1~esm5"
        },
        {
          "binary_name": "heif-thumbnailer",
          "binary_version": "1.6.1-1ubuntu0.1~esm5"
        },
        {
          "binary_name": "libheif-examples",
          "binary_version": "1.6.1-1ubuntu0.1~esm5"
        },
        {
          "binary_name": "libheif1",
          "binary_version": "1.6.1-1ubuntu0.1~esm5"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.12.0-2ubuntu0.1~esm5"
          }
        ]
      }
    ],
    "package": {
      "name": "libheif",
      "purl": "pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Fjammy",
      "ecosystem": "Ubuntu:Pro:22.04:LTS"
    },
    "versions": [
      "1.11.0-1",
      "1.12.0-2build1",
      "1.12.0-2ubuntu0.1~esm1",
      "1.12.0-2ubuntu0.1~esm2",
      "1.12.0-2ubuntu0.1~esm3",
      "1.12.0-2ubuntu0.1~esm4"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84449.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "heif-gdk-pixbuf",
          "binary_version": "1.12.0-2ubuntu0.1~esm5"
        },
        {
          "binary_name": "heif-thumbnailer",
          "binary_version": "1.12.0-2ubuntu0.1~esm5"
        },
        {
          "binary_name": "libheif-examples",
          "binary_version": "1.12.0-2ubuntu0.1~esm5"
        },
        {
          "binary_name": "libheif1",
          "binary_version": "1.12.0-2ubuntu0.1~esm5"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.17.6-1ubuntu4.9"
          }
        ]
      }
    ],
    "package": {
      "name": "libheif",
      "purl": "pkg:deb/ubuntu/libheif?arch=source&distro=noble",
      "ecosystem": "Ubuntu:24.04:LTS"
    },
    "versions": [
      "1.16.2-2ubuntu1",
      "1.17.1-1ubuntu2",
      "1.17.1-1ubuntu3",
      "1.17.4-1ubuntu1",
      "1.17.6-1ubuntu1",
      "1.17.6-1ubuntu2",
      "1.17.6-1ubuntu3",
      "1.17.6-1ubuntu4",
      "1.17.6-1ubuntu4.1",
      "1.17.6-1ubuntu4.2",
      "1.17.6-1ubuntu4.3",
      "1.17.6-1ubuntu4.4",
      "1.17.6-1ubuntu4.5",
      "1.17.6-1ubuntu4.6",
      "1.17.6-1ubuntu4.7",
      "1.17.6-1ubuntu4.8"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84449.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "heif-gdk-pixbuf",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "heif-thumbnailer",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-examples",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-aomdec",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-aomenc",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-dav1d",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-ffmpegdec",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-j2kdec",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-j2kenc",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-jpegdec",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-jpegenc",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-libde265",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-rav1e",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-svtenc",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif-plugin-x265",
          "binary_version": "1.17.6-1ubuntu4.9"
        },
        {
          "binary_name": "libheif1",
          "binary_version": "1.17.6-1ubuntu4.9"
        }
      ],
      "availability": "No subscription required"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #65231 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 20:31:52 GMT
Publisher date: Fri, 18 Sep 2026 16:17:00 GMT

Read the original announcement