Timing Attack Affecting cryptography package, versions [,39.0.1)
Threat Intelligence
EPSS
0.18% (56th
percentile)
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Test your applications- Snyk ID SNYK-PYTHON-CRYPTOGRAPHY-3315331
- published 8 Feb 2023
- disclosed 7 Feb 2023
- credit Hubert Kario
Introduced: 7 Feb 2023
CVE-2022-4304 Open this link in a new tabHow to fix?
Upgrade cryptography to version 39.0.1 or higher.
Overview
Affected versions of this package are vulnerable to Timing Attack in rsa/rsa_ossl.c. An attacker can recover ciphertext with a Bleichenbacher style attack by sending a large number of trial messages (Marvin). This affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE.
CVSS Scores
version 3.1