USN-6539-1

Source
https://ubuntu.com/security/notices/USN-6539-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/USN-6539-1.json
Related
Published
2023-12-06T15:22:41.164806Z
Modified
2023-12-06T15:22:41.164806Z
Summary
python-cryptography vulnerabilities
Details

It was discovered that the python-cryptography Cipher.update_into function would incorrectly accept objects with immutable buffers. This would result in corrupted output, contrary to expectations. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-23931)

It was dicovered that python-cryptography incorrectly handled loading certain PKCS7 certificates. A remote attacker could possibly use this issue to cause python-cryptography to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. (CVE-2023-49083)

References

Affected packages

Ubuntu:20.04:LTS / python-cryptography

Package

Name
python-cryptography

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
2.8-3ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "python-cryptography": "2.8-3ubuntu0.2",
            "python-cryptography-doc": "2.8-3ubuntu0.2",
            "python3-cryptography": "2.8-3ubuntu0.2"
        }
    ]
}

Ubuntu:22.04:LTS / python-cryptography

Package

Name
python-cryptography

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
3.4.8-1ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "python-cryptography-doc": "3.4.8-1ubuntu2.1",
            "python3-cryptography": "3.4.8-1ubuntu2.1"
        }
    ]
}

Ubuntu:23.10 / python-cryptography

Package

Name
python-cryptography

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
38.0.4-4ubuntu0.23.10.1

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "python-cryptography-doc": "38.0.4-4ubuntu0.23.10.1",
            "python3-cryptography": "38.0.4-4ubuntu0.23.10.1"
        }
    ]
}