UBUNTU-CVE-2026-4367

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Source
https://ubuntu.com/security/CVE-2026-4367
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-4367
Upstream
Downstream
Related
Published
2026-04-21T13:00:00Z
Modified
2026-07-23T20:39:06Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the xpmNextWord() function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.

References

Affected packages

Ubuntu:14.04:LTS
motif

Package

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

Affected ranges

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

Affected versions

2.*
2.3.4-4
2.3.4-5
2.3.4-5ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "libmotif3",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "libmotif4",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "motif-clients",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.4-5ubuntu0.1"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.4-5ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:16.04:LTS
motif

Package

Name
motif
Purl
pkg:deb/ubuntu/motif?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.3.4-8ubuntu1
2.3.4-9
2.3.4-10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.4-10"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.4-10"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.4-10"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.4-10"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.4-10"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.4-10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:18.04:LTS
motif

Package

Name
motif
Purl
pkg:deb/ubuntu/motif?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.3.7-2
2.3.8-1
2.3.8-2
2.3.8-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:20.04:LTS
libxpm

Package

Name
libxpm
Purl
pkg:deb/ubuntu/libxpm?arch=source&distro=focal

Affected ranges

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

Affected versions

1:3.*
1:3.5.12-1
1:3.5.12-1ubuntu0.20.04.1
1:3.5.12-1ubuntu0.20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.12-1ubuntu0.20.04.2"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.12-1ubuntu0.20.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
motif

Package

Name
motif
Purl
pkg:deb/ubuntu/motif?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.3.8-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-2build1"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:22.04:LTS
libxpm

Package

Name
libxpm
Purl
pkg:deb/ubuntu/libxpm?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.5.12-1ubuntu0.22.04.3

Affected versions

1:3.*
1:3.5.12-1
1:3.5.12-1build1
1:3.5.12-1build2
1:3.5.12-1ubuntu0.22.04.1
1:3.5.12-1ubuntu0.22.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.12-1ubuntu0.22.04.3"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.12-1ubuntu0.22.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
motif

Package

Name
motif
Purl
pkg:deb/ubuntu/motif?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.3.8-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-3"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-3"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-3"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-3"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-3"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:24.04:LTS
libxpm

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.5.17-1ubuntu0.24.04.1

Affected versions

1:3.*
1:3.5.12-1.1ubuntu1
1:3.5.17-1
1:3.5.17-1build1
1:3.5.17-1build2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.17-1ubuntu0.24.04.1"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.17-1ubuntu0.24.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
motif

Package

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

Affected ranges

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

Affected versions

2.*
2.3.8-3
2.3.8-3.1
2.3.8-3.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-3.1build1"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-3.1build1"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-3.1build1"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-3.1build1"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-3.1build1"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-3.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:25.10
libxpm

Package

Name
libxpm
Purl
pkg:deb/ubuntu/libxpm?arch=source&distro=questing

Affected ranges

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

Affected versions

1:3.*
1:3.5.17-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.17-1build2"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.17-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
motif

Package

Name
motif
Purl
pkg:deb/ubuntu/motif?arch=source&distro=questing

Affected ranges

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

Affected versions

2.*
2.3.8-4
2.3.8-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-5"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-5"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-5"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-5"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-5"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:26.04:LTS
libxpm

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.5.17-1ubuntu0.26.04.1

Affected versions

1:3.*
1:3.5.17-1build2
1:3.5.17-1build3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.17-1ubuntu0.26.04.1"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.17-1ubuntu0.26.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
motif

Package

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

Affected ranges

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

Affected versions

2.*
2.3.8-5
2.3.8-5build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmotif-common",
            "binary_version": "2.3.8-5build1"
        },
        {
            "binary_name": "libmrm4",
            "binary_version": "2.3.8-5build1"
        },
        {
            "binary_name": "libuil4",
            "binary_version": "2.3.8-5build1"
        },
        {
            "binary_name": "libxm4",
            "binary_version": "2.3.8-5build1"
        },
        {
            "binary_name": "mwm",
            "binary_version": "2.3.8-5build1"
        },
        {
            "binary_name": "uil",
            "binary_version": "2.3.8-5build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:Pro:14.04:LTS
libxpm

Package

Name
libxpm
Purl
pkg:deb/ubuntu/libxpm?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

1:3.*
1:3.5.10-1
1:3.5.10-1ubuntu0.1
1:3.5.10-1ubuntu0.1+esm1
1:3.5.10-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.10-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.10-1ubuntu0.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:Pro:16.04:LTS
libxpm

Package

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

Affected ranges

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

Affected versions

1:3.*
1:3.5.11-1
1:3.5.11-1ubuntu0.16.04.1
1:3.5.11-1ubuntu0.16.04.1+esm1
1:3.5.11-1ubuntu0.16.04.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.11-1ubuntu0.16.04.1+esm2"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.11-1ubuntu0.16.04.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"
Ubuntu:Pro:18.04:LTS
libxpm

Package

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

Affected ranges

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

Affected versions

1:3.*
1:3.5.12-1
1:3.5.12-1ubuntu0.18.04.2
1:3.5.12-1ubuntu0.18.04.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxpm4",
            "binary_version": "1:3.5.12-1ubuntu0.18.04.2+esm1"
        },
        {
            "binary_name": "xpmutils",
            "binary_version": "1:3.5.12-1ubuntu0.18.04.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4367.json"