UBUNTU-CVE-2026-3949

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Source
https://ubuntu.com/security/CVE-2026-3949
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-3949
Upstream
Withdrawn
2026-04-02T17:29:38Z
Published
2026-03-11T19:16:00Z
Modified
2026-04-02T21:24:01Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.

References

Affected packages

Ubuntu:Pro:18.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif@1.1.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libheif-dev",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif1",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json"

Ubuntu:Pro:20.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif@1.6.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/focal

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif-dev",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif1",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json"

Ubuntu:Pro:22.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif@1.12.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif-dev",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libheif1",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json"

Ubuntu:24.04:LTS / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif@1.17.6-1ubuntu4.2?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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-dev",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-aomdec",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-aomenc",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-dav1d",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-ffmpegdec",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-j2kdec",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-j2kenc",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-jpegdec",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-jpegenc",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-libde265",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-rav1e",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-svtenc",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif-plugin-x265",
            "binary_version": "1.17.6-1ubuntu4.2"
        },
        {
            "binary_name": "libheif1",
            "binary_version": "1.17.6-1ubuntu4.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json"

Ubuntu:25.10 / libheif

Package

Name
libheif
Purl
pkg:deb/ubuntu/libheif@1.20.2-1ubuntu0.1?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.19.7-1
1.19.8-1
1.20.2-1
1.20.2-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "heif-view",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-dev",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-aomdec",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-aomenc",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-dav1d",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-ffmpegdec",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-j2kdec",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-j2kenc",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-jpegdec",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-jpegenc",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-kvazaar",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-libde265",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-rav1e",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-svtenc",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugin-x265",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif-plugins-all",
            "binary_version": "1.20.2-1ubuntu0.1"
        },
        {
            "binary_name": "libheif1",
            "binary_version": "1.20.2-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3949.json"