CVE-2020-36242

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

References

Affected packages

Git / github.com/pyca/cryptography

Affected ranges

Type

GIT

Repo

https://github.com/pyca/cryptography

Events

Introduced

Fixed

82b6ce28389f0a317bc55ba2091a74b346db7cae

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.3.2"
        }
    ]
}

Affected versions

0.*

0.1

0.2

0.3

0.4

0.5

0.5.1

0.6

0.7

0.8

0.9

1.*

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.*

2.0

2.1

2.2

2.3

2.4

2.4.1

2.5

2.6

2.6.1

2.7

2.8

2.9

3.*

3.0

3.1

3.2

3.3

3.3.1

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "33"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.10.0"
            }
        ]
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-36242.json"