UBUNTU-CVE-2026-84449

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Source
https://ubuntu.com/security/CVE-2026-84449
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84449.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84449
Upstream
Published
2026-09-21T00:00:00Z
Modified
2026-09-21T21:40:32Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

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-2026-84449.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-2026-84449.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-2026-84449.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-2026-84449.json"