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osvGoogleOSV:GHSA-RHM9-P9W5-FWM7
HistoryFeb 10, 2021 - 1:32 a.m.

PyCA Cryptography symmetrically encrypting large values can lead to integer overflow

2021-02-1001:32:27
Google
osv.dev
32
cryptography
symmetric encryption
integer overflow
patched
python

AI Score

9.2

Confidence

High

EPSS

0.008

Percentile

82.3%

JSON

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. When certain sequences of update() calls with large values (multiple GBs) for symetric encryption or decryption occur, it’s possible for an integer overflow to happen, leading to mishandling of buffers. This is patched in version 3.3.2 and newer.

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AI Score

9.2

Confidence

High

EPSS

0.008

Percentile

82.3%

JSON
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