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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||9.1||Base Metrics:||AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||None||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||High|
|Oracle Linux version 8 (python-cryptography)||ELSA-2021-1608||2021-05-25|
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