UBUNTU-CVE-2026-62291
- Source
- https://ubuntu.com/security/CVE-2026-62291
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-62291.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-62291
- Upstream
- Downstream
- Related
- Published
- 2026-08-20T00:00:00Z
- Modified
- 2026-09-18T23:56:34Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. Track_Visual::decode_next_image_sample() calls transfer_channel_from_image_as() without checking that the auxiliary alpha dimensions match the main frame. The resulting inconsistent image reaches heif_track_decode_next_image() and then heif_context_encode_image(). In unc_encoder::encode(), unc_encoder_component_interleave::encode_tile() sizes its buffer with compute_tile_data_size_bytes() using the primary dimensions but copies each component using its actual plane dimensions. The oversized alpha plane is therefore copied beyond the allocation, causing an out-of-bounds write; the inverse size mismatch can also produce an out-of-bounds read. This issue is fixed in version 1.23.1.
- References
-
- https://ubuntu.com/security/CVE-2026-62291
- https://www.cve.org/CVERecord?id=CVE-2026-62291
- https://github.com/strukturag/libheif/commit/ac5521ad50399885de96bb6a0733a5d2442740f9
- https://github.com/strukturag/libheif/releases/tag/v1.23.1
- https://github.com/strukturag/libheif/security/advisories/GHSA-xpw3-9rhw-482x
- https://ubuntu.com/security/notices/USN-8683-1
- https://ubuntu.com/security/notices/USN-8774-1
Affected packages
Ubuntu:24.04:LTS / libheif
Package
- Name
- libheif
- Purl
- pkg:deb/ubuntu/libheif?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed1.17.6-1ubuntu4.8
Affected versions
1.*
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
Ecosystem specific
{
"availability": "No subscription required",
"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"
}
]
}
Ubuntu:26.04:LTS / libheif
Package
- Name
- libheif
- Purl
- pkg:deb/ubuntu/libheif?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed1.21.2-3ubuntu0.5
Affected versions
1.*
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
Ecosystem specific
{
"availability": "No subscription required",
"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"
}
]
}