UBUNTU-CVE-2021-33391

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Source
https://ubuntu.com/security/CVE-2021-33391
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33391.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-33391
Upstream
Downstream
Related
Published
2023-02-17T18:15:00Z
Modified
2026-04-22T12:53:56.808627Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g option of the CleanNode() function in gdoc.c.

References

Affected packages

Ubuntu:18.04:LTS / tidy-html5

Package

Name
tidy-html5
Purl
pkg:deb/ubuntu/tidy-html5@1:5.2.0-2?arch=source&distro=bionic

Affected ranges

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

Affected versions

1:5.*
1:5.2.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtidy5",
            "binary_version": "1:5.2.0-2"
        },
        {
            "binary_name": "tidy",
            "binary_version": "1:5.2.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33391.json"

Ubuntu:20.04:LTS / tidy-html5

Package

Name
tidy-html5
Purl
pkg:deb/ubuntu/tidy-html5@2:5.6.0-11ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:5.6.0-11ubuntu0.20.04.1

Affected versions

2:5.*
2:5.6.0-10
2:5.6.0-11

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libtidy5deb1",
            "binary_version": "2:5.6.0-11ubuntu0.20.04.1"
        },
        {
            "binary_name": "tidy",
            "binary_version": "2:5.6.0-11ubuntu0.20.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33391.json"

Ubuntu:22.04:LTS / tidy-html5

Package

Name
tidy-html5
Purl
pkg:deb/ubuntu/tidy-html5@2:5.6.0-11ubuntu0.22.04.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:5.6.0-11ubuntu0.22.04.1

Affected versions

2:5.*
2:5.6.0-11build1
2:5.6.0-11build2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libtidy5deb1",
            "binary_version": "2:5.6.0-11ubuntu0.22.04.1"
        },
        {
            "binary_name": "tidy",
            "binary_version": "2:5.6.0-11ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33391.json"

Ubuntu:24.04:LTS / tidy-html5

Package

Name
tidy-html5
Purl
pkg:deb/ubuntu/tidy-html5@2:5.6.0-11ubuntu1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:5.6.0-11ubuntu1

Affected versions

2:5.*
2:5.6.0-11build2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libtidy5deb1",
            "binary_version": "2:5.6.0-11ubuntu1"
        },
        {
            "binary_name": "tidy",
            "binary_version": "2:5.6.0-11ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33391.json"