UBUNTU-CVE-2020-13757

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Source
https://ubuntu.com/security/CVE-2020-13757
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13757.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-13757
Related
Published
2020-06-01T19:15:00Z
Modified
2024-10-15T14:07:29Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

References

Affected packages

Ubuntu:Pro:14.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.2-1ubuntu0.1+esm1

Affected versions

3.*

3.1.2-1
3.1.2-1ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.1.2-1ubuntu0.1+esm1",
            "binary_name": "python-rsa"
        },
        {
            "binary_version": "3.1.2-1ubuntu0.1+esm1",
            "binary_name": "python3-rsa"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.3-1.1ubuntu0.1~esm1

Affected versions

3.*

3.1.4-1
3.2.3-1
3.2.3-1.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.2.3-1.1ubuntu0.1~esm1",
            "binary_name": "python-rsa"
        },
        {
            "binary_version": "3.2.3-1.1ubuntu0.1~esm1",
            "binary_name": "python3-rsa"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.2-1ubuntu0.1~esm1

Affected versions

3.*

3.4.2-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.4.2-1ubuntu0.1~esm1",
            "binary_name": "python-rsa"
        },
        {
            "binary_version": "3.4.2-1ubuntu0.1~esm1",
            "binary_name": "python3-rsa"
        }
    ]
}

Ubuntu:20.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=focal

Affected ranges

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

Affected versions

4.*

4.0-2
4.0-3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:20.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.0-3ubuntu0.1~esm1

Affected versions

4.*

4.0-2
4.0-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.0-3ubuntu0.1~esm1",
            "binary_name": "python3-rsa"
        }
    ]
}

Ubuntu:22.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.8-1

Affected versions

4.*

4.0-4
4.7.2-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.8-1",
            "binary_name": "python3-rsa"
        }
    ]
}

Ubuntu:24.04:LTS / python-rsa

Package

Name
python-rsa
Purl
pkg:deb/ubuntu/python-rsa?arch=src?distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.8-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.8-1",
            "binary_name": "python3-rsa"
        }
    ]
}