UBUNTU-CVE-2021-33880

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Source
https://ubuntu.com/security/CVE-2021-33880
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-33880
Upstream
Published
2021-06-06T15:15:00Z
Modified
2026-05-20T16:05:02Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.

References

Affected packages

Ubuntu:16.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.6-1
3.*
3.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "3.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:18.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.3-1
3.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "3.4-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:20.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=focal

Affected ranges

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

Affected versions

7.*
7.0-1
8.*
8.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "8.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:22.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=jammy

Affected ranges

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

Affected versions

8.*
8.1-1
9.*
9.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "9.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:24.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=noble

Affected ranges

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

Affected versions

10.*
10.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "10.4-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:25.10
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=questing

Affected ranges

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

Affected versions

14.*
14.1-1build1
15.*
15.0.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "15.0.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"
Ubuntu:26.04:LTS
python-websockets

Package

Name
python-websockets
Purl
pkg:deb/ubuntu/python-websockets?arch=source&distro=resolute

Affected ranges

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

Affected versions

15.*
15.0.1-1
15.0.1-1build1
15.0.1-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-websockets",
            "binary_version": "15.0.1-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33880.json"