UBUNTU-CVE-2022-34749

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Source
https://ubuntu.com/security/CVE-2022-34749
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-34749.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-34749
Upstream
Published
2022-07-25T23:15:00Z
Modified
2025-10-24T04:53:46Z
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

In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.

References

Affected packages

Ubuntu:16.04:LTS / mistune

Package

Name
mistune
Purl
pkg:deb/ubuntu/mistune@0.7.1-1?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.6-2
0.7.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.7.1-1",
            "binary_name": "python-mistune"
        },
        {
            "binary_version": "0.7.1-1",
            "binary_name": "python3-mistune"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-34749.json"

Ubuntu:18.04:LTS / mistune

Package

Name
mistune
Purl
pkg:deb/ubuntu/mistune@0.8.3-2?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.7.4-1
0.8-1
0.8.1-1
0.8.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.8.3-2",
            "binary_name": "python-mistune"
        },
        {
            "binary_version": "0.8.3-2",
            "binary_name": "python3-mistune"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-34749.json"

Ubuntu:20.04:LTS / mistune

Package

Name
mistune
Purl
pkg:deb/ubuntu/mistune@0.8.4-2?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.8.4-1
0.8.4-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.8.4-2",
            "binary_name": "python3-mistune"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-34749.json"

Ubuntu:22.04:LTS / mistune

Package

Name
mistune
Purl
pkg:deb/ubuntu/mistune@2.0.0-1+really0.8.4-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.8.4-4
0.8.4-5
2.*
2.0.0-1+really0.8.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.0-1+really0.8.4-1",
            "binary_name": "python3-mistune"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-34749.json"