UBUNTU-CVE-2026-84449
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.
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/versions1.1.0-2ubuntu0.1~esm1Source reference:
/affected/0/versions1.1.0-2ubuntu0.1~esm2Source reference:
/affected/0/versions1.1.0-2ubuntu0.1~esm3Source reference:
/affected/0/versions1.1.0-2ubuntu0.1~esm4Source 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/versions1.5.1-1Source reference:
/affected/1/versions1.5.1-1build1Source reference:
/affected/1/versions1.6.0-1Source reference:
/affected/1/versions1.6.1-1Source reference:
/affected/1/versions1.6.1-1build1Source reference:
/affected/1/versions1.6.1-1ubuntu0.1~esm1Source reference:
/affected/1/versions1.6.1-1ubuntu0.1~esm2Source reference:
/affected/1/versions1.6.1-1ubuntu0.1~esm3Source reference:
/affected/1/versions1.6.1-1ubuntu0.1~esm4Source 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/versions1.12.0-2build1Source reference:
/affected/2/versions1.12.0-2ubuntu0.1~esm1Source reference:
/affected/2/versions1.12.0-2ubuntu0.1~esm2Source reference:
/affected/2/versions1.12.0-2ubuntu0.1~esm3Source reference:
/affected/2/versions1.12.0-2ubuntu0.1~esm4Source 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/versions1.17.1-1ubuntu2Source reference:
/affected/3/versions1.17.1-1ubuntu3Source reference:
/affected/3/versions1.17.4-1ubuntu1Source reference:
/affected/3/versions1.17.6-1ubuntu1Source reference:
/affected/3/versions1.17.6-1ubuntu2Source reference:
/affected/3/versions1.17.6-1ubuntu3Source reference:
/affected/3/versions1.17.6-1ubuntu4Source reference:
/affected/3/versions1.17.6-1ubuntu4.1Source reference:
/affected/3/versions1.17.6-1ubuntu4.2Source reference:
/affected/3/versions1.17.6-1ubuntu4.3Source reference:
/affected/3/versions1.17.6-1ubuntu4.4Source reference:
/affected/3/versions1.17.6-1ubuntu4.5Source reference:
/affected/3/versions1.17.6-1ubuntu4.6Source reference:
/affected/3/versions1.17.6-1ubuntu4.7Source reference:
/affected/3/versions1.17.6-1ubuntu4.8Source 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": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.0-2ubuntu0.1~esm5"
}
]
}
],
"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
- Publisher date