UBUNTU-CVE-2026-84446

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Source
https://ubuntu.com/security/CVE-2026-84446
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84446
Upstream
Published
2026-09-21T00:00:00Z
Modified
2026-09-21T21:41:00Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, crafted HEIF sequence timing and edit-list data can make Track::init_sample_timing_table() compute a logical m_num_output_samples value that exceeds the uint32_t counters used by Track_Visual::decode_next_image_sample() and Track::get_next_sample_raw_data(). The resulting comparison can never reach the oversized output count, causing non-terminating decode or raw-sample loops and bypassing max_sequence_frames. The same sequence path repeatedly calls Box_stts::get_sample_duration() and allocates Chunk::m_sample_ranges and Track::m_presentation_timeline outside MemoryHandle accounting, allowing severe CPU and memory exhaustion from a small file. This issue is fixed in version 1.23.2.

References

Affected packages

Ubuntu:Pro:18.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
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":  "libheif-examples",
            "binary_version":  "1.1.0-2ubuntu0.1~esm4"
        },
        {
            "binary_name":  "libheif1",
            "binary_version":  "1.1.0-2ubuntu0.1~esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json"

Ubuntu:Pro:20.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
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":  "1.6.1-1ubuntu0.1~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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json"

Ubuntu:Pro:22.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
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":  "1.12.0-2ubuntu0.1~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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json"

Ubuntu:24.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

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
1.17.6-1ubuntu4.8

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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json"

Ubuntu:26.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

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
1.21.2-3ubuntu0.5

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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84446.json"