UBUNTU-CVE-2026-121942

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Source
https://ubuntu.com/security/CVE-2026-121942
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-121942
Upstream
Published
2026-11-04T00:00:00Z
Modified
2026-11-05T11:46:32Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

ZBar through 0.23.95 contains an out-of-bounds read vulnerability in _zbar_sq_decode() in zbar/sqcode.c that allows attackers to read heap memory outside the image buffer via crafted SQ code images. Attackers can supply an image with a skewed SQ code finder pattern near the edge, producing unchecked sample coordinates that crash the decoder and leak bytes into output.

References

Affected packages

Ubuntu:14.04:LTS
zbar

Package

Name
zbar
Purl
pkg:deb/ubuntu/zbar?arch=source&distro=trusty

Affected ranges

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

Affected versions

0.*
0.10+doc-9
0.10+doc-9build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "libzbar0",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "libzbargtk0",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "libzbarqt0",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "python-zbar",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "python-zbarpygtk",
            "binary_version": "0.10+doc-9build1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.10+doc-9build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:24.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.23.92-8
0.23.92-9
0.23.93-1
0.23.93-1build1
0.23.93-4build1
0.23.93-4build2
0.23.93-4build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-zbar-1.0",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "libzbar0t64",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "libzbargtk0t64",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "libzbarqt0t64",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "python3-zbar",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "zbarcam-gtk",
            "binary_version": "0.23.93-4build3"
        },
        {
            "binary_name": "zbarcam-qt",
            "binary_version": "0.23.93-4build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:26.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.23.93-8
0.23.93-9ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-zbar-1.0",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "libzbar0t64",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "libzbargtk0t64",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "libzbarqt0t64",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "python3-zbar",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "zbarcam-gtk",
            "binary_version": "0.23.93-9ubuntu1"
        },
        {
            "binary_name": "zbarcam-qt",
            "binary_version": "0.23.93-9ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:26.10
zbar

Package

Name
zbar
Purl
pkg:deb/ubuntu/zbar?arch=source&distro=stonking

Affected ranges

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

Affected versions

0.*
0.23.93-9ubuntu1
0.23.93-9ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-zbar-1.0",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "libzbar0t64",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "libzbargtk0t64",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "libzbarqt0t64",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "python3-zbar",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "zbarcam-gtk",
            "binary_version": "0.23.93-9ubuntu2"
        },
        {
            "binary_name": "zbarcam-qt",
            "binary_version": "0.23.93-9ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:Pro:16.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.10+doc-10build1
0.10+doc-10build2
0.10+doc-10ubuntu1
0.10+doc-10ubuntu1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "libzbar0",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "libzbargtk0",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "libzbarqt0",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "python-zbar",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "python-zbarpygtk",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.10+doc-10ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:Pro:18.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.10+doc-10.1build2
0.10+doc-10.1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbar0",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbargtk0",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbarqt0",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-zbar",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-zbarpygtk",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.10+doc-10.1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:Pro:20.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.23-1.1
0.23-1.2
0.23-1.3
0.23-1.3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbar0",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbargtk0",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbarqt0",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-zbar",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbarcam-gtk",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbarcam-qt",
            "binary_version": "0.23-1.3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"
Ubuntu:Pro:22.04:LTS
zbar

Package

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

Affected ranges

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

Affected versions

0.*
0.23.90-1
0.23.92-4
0.23.92-4build2
0.23.92-4ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbarcode-zbar-perl",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbar0",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbargtk0",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "libzbarqt0",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-zbar",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbar-tools",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbarcam-gtk",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        },
        {
            "binary_name": "zbarcam-qt",
            "binary_version": "0.23.92-4ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-121942.json"