UBUNTU-CVE-2026-84444 (CVE-2026-84444)
Vulnerability from osv_ubuntu – Published: 2026-09-18 16:17 – Updated: 2026-09-23 23:36 – Source website
Withdrawn 2026-09-24
VLAI
Details
libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, when WITH_UNCOMPRESSED_CODEC is enabled, heif_context_add_image_tile() accepts an independently constructed tile whose component-plane dimensions do not match the tile geometry established by the prototype image. ImageItem_uncompressed::add_image_tile() passes that tile directly to unc_encoder::encode_tile(), which lacked the check_component_sizes() gate and sizes its output from the configured tile geometry while copying the tile's actual component-plane dimensions. An oversized component plane can therefore make unc_encoder_component_interleave::encode_tile() copy attacker-controlled data beyond the heap output buffer. This issue is fixed in version 1.23.2.
Severity
7.4 (High)
N/A (UNKNOWN)
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libheif-examples",
"binary_version": "1.1.0-2ubuntu0.1~esm4"
},
{
"binary_name": "libheif1",
"binary_version": "1.1.0-2ubuntu0.1~esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "libheif",
"purl": "pkg:deb/ubuntu/libheif@1.1.0-2ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "heif-gdk-pixbuf",
"binary_version": "1.6.1-1ubuntu0.1~esm4"
},
{
"binary_name": "heif-thumbnailer",
"binary_version": "1.6.1-1ubuntu0.1~esm4"
},
{
"binary_name": "libheif-examples",
"binary_version": "1.6.1-1ubuntu0.1~esm4"
},
{
"binary_name": "libheif1",
"binary_version": "1.6.1-1ubuntu0.1~esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "libheif",
"purl": "pkg:deb/ubuntu/libheif@1.6.1-1ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "heif-gdk-pixbuf",
"binary_version": "1.12.0-2ubuntu0.1~esm4"
},
{
"binary_name": "heif-thumbnailer",
"binary_version": "1.12.0-2ubuntu0.1~esm4"
},
{
"binary_name": "libheif-examples",
"binary_version": "1.12.0-2ubuntu0.1~esm4"
},
{
"binary_name": "libheif1",
"binary_version": "1.12.0-2ubuntu0.1~esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "libheif",
"purl": "pkg:deb/ubuntu/libheif@1.12.0-2ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "heif-gdk-pixbuf",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "heif-thumbnailer",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-examples",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-aomdec",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-aomenc",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-dav1d",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-ffmpegdec",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-j2kdec",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-j2kenc",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-jpegdec",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-jpegenc",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-libde265",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-rav1e",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-svtenc",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif-plugin-x265",
"binary_version": "1.17.6-1ubuntu4.8"
},
{
"binary_name": "libheif1",
"binary_version": "1.17.6-1ubuntu4.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libheif",
"purl": "pkg:deb/ubuntu/libheif@1.17.6-1ubuntu4.8?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "heif-gdk-pixbuf",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "heif-thumbnailer",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "heif-view",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-examples",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-aomdec",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-aomenc",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-dav1d",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-ffmpegdec",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-j2kdec",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-j2kenc",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-jpegdec",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-jpegenc",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-kvazaar",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-libde265",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-rav1e",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-svtenc",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugin-x265",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif-plugins-all",
"binary_version": "1.21.2-3ubuntu0.5"
},
{
"binary_name": "libheif1",
"binary_version": "1.21.2-3ubuntu0.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libheif",
"purl": "pkg:deb/ubuntu/libheif@1.21.2-3ubuntu0.5?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.20.2-1",
"1.20.2-2",
"1.20.2-2build1",
"1.20.2-2build2",
"1.20.2-2ubuntu1",
"1.21.2-1",
"1.21.2-3",
"1.21.2-3ubuntu0.1",
"1.21.2-3ubuntu0.2",
"1.21.2-3ubuntu0.3",
"1.21.2-3ubuntu0.4",
"1.21.2-3ubuntu0.5"
]
}
],
"aliases": [],
"details": "libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, when WITH_UNCOMPRESSED_CODEC is enabled, heif_context_add_image_tile() accepts an independently constructed tile whose component-plane dimensions do not match the tile geometry established by the prototype image. ImageItem_uncompressed::add_image_tile() passes that tile directly to unc_encoder::encode_tile(), which lacked the check_component_sizes() gate and sizes its output from the configured tile geometry while copying the tile\u0027s actual component-plane dimensions. An oversized component plane can therefore make unc_encoder_component_interleave::encode_tile() copy attacker-controlled data beyond the heap output buffer. This issue is fixed in version 1.23.2.",
"id": "UBUNTU-CVE-2026-84444",
"modified": "2026-09-23T23:36:45Z",
"published": "2026-09-18T16:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-84444"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-84444"
},
{
"type": "REPORT",
"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-j264-xvrp-5v7q"
},
{
"type": "REPORT",
"url": "https://github.com/strukturag/libheif/commit/e65071f59a1ac08aa1eb0d07a831deaf6bb4d03b"
},
{
"type": "REPORT",
"url": "https://github.com/strukturag/libheif/releases/tag/v1.23.2"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-84444"
],
"withdrawn": "2026-09-24T21:44:15Z"
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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