UBUNTU-CVE-2026-102473

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Source
https://ubuntu.com/security/CVE-2026-102473
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-102473
Upstream
  • CVE-2026-102473
Published
2026-09-29T10:17:00Z
Modified
2026-10-01T00:21:05Z
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 dash. When built without libc fnmatch, the internal pmatch() matcher implements * by unbounded recursion over candidate positions. A local user who can plant filenames, or otherwise feed that matcher, can make a short multi-star pattern such as ....*.tar.gz consume excessive CPU.

References

Affected packages

Ubuntu:14.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.7-3ubuntu1
0.5.7-4ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.7-4ubuntu1"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.7-4ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:16.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.7-4ubuntu2
0.5.8-2.1ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.8-2.1ubuntu2"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.8-2.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:18.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.8-2.3ubuntu1
0.5.8-2.5ubuntu1
0.5.8-2.9ubuntu1
0.5.8-2.10

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.8-2.10"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.8-2.10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:20.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.10.2-6

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.10.2-6"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.10.2-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:22.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.11+git20210120+802ebd4-1build1
0.5.11+git20210903+057cd650a4ed-3
0.5.11+git20210903+057cd650a4ed-3build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.11+git20210903+057cd650a4ed-3build1"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.11+git20210903+057cd650a4ed-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:24.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.12-6ubuntu1
0.5.12-6ubuntu3
0.5.12-6ubuntu4
0.5.12-6ubuntu5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ash",
            "binary_version":  "0.5.12-6ubuntu5"
        },
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.12-6ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"
Ubuntu:26.04:LTS
dash

Package

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

Affected ranges

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

Affected versions

0.*
0.5.12-12ubuntu2
0.5.12-12ubuntu3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "dash",
            "binary_version":  "0.5.12-12ubuntu3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-102473.json"