UBUNTU-CVE-2021-42040

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2021-42040
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42040.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-42040
Upstream
Published
2021-10-06T21:15:00Z
Modified
2025-10-24T04:50:35Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.

References

Affected packages

Ubuntu:18.04:LTS

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.27.4-3?arch=source&distro=bionic

Affected ranges

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

Affected versions

1:1.*

1:1.27.3-1
1:1.27.4-1
1:1.27.4-2
1:1.27.4-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.27.4-3"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.27.4-3"
        }
    ]
}

Ubuntu:20.04:LTS

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.31.7-1?arch=source&distro=focal

Affected ranges

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

Affected versions

1:1.*

1:1.31.2-1ubuntu1
1:1.31.5-1
1:1.31.5-1ubuntu1
1:1.31.5-2
1:1.31.5-3
1:1.31.5-3ubuntu1
1:1.31.6-1
1:1.31.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.31.7-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.31.7-1"
        }
    ]
}

Ubuntu:22.04:LTS

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.35.6-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:1.*

1:1.35.3-1
1:1.35.4-1
1:1.35.5-1
1:1.35.5-1ubuntu1
1:1.35.5-1ubuntu2
1:1.35.5-1ubuntu3
1:1.35.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.35.6-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.35.6-1"
        }
    ]
}

Ubuntu:24.04:LTS

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.39.7-1?arch=source&distro=noble

Affected ranges

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

Affected versions

1:1.*

1:1.39.4-2
1:1.39.5-1
1:1.39.6-1
1:1.39.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.39.7-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.39.7-1"
        }
    ]
}

Ubuntu:25.04

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.43.1+dfsg-1?arch=source&distro=plucky

Affected ranges

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

Affected versions

1:1.*

1:1.39.10-1
1:1.43.0-0maysync3
1:1.43.0+dfsg-2
1:1.43.1+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.1+dfsg-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.1+dfsg-1"
        }
    ]
}

Ubuntu:25.10

mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki@1:1.43.3+dfsg-1?arch=source&distro=questing

Affected ranges

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

Affected versions

1:1.*

1:1.43.1+dfsg-1
1:1.43.1+dfsg-2
1:1.43.3+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.3+dfsg-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.3+dfsg-1"
        }
    ]
}