CVE-2020-25659

python-cryptography: Bleichenbacher timing oracle attack against RSA decryption

Published Jan 11, 2021 CVSS 3.1 · 5.9 Medium EPSS 2.5% KEV · Not listed
Description
python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-0047 python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.
Github GHSA Github GHSA GHSA-hggm-jpg3-v476 RSA decryption vulnerable to Bleichenbacher timing vulnerability
Ubuntu USN Ubuntu USN USN-4613-1 python-cryptography vulnerability
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00343}

epss

{'score': 0.00252}

Type Values Removed Values Added
CPEs cpe:2.3:a:cryptography.io:cryptography:3.2:*:*:*:*:*:*:* cpe:2.3:a:cryptography.io:cryptography:3.2:*:*:*:*:python:*:*
Type Values Removed Values Added
First Time appeared Cryptography.io
Cryptography.io cryptography
CPEs cpe:2.3:a:python-cryptography_project:python-cryptography:3.2:*:*:*:*:*:*:* cpe:2.3:a:cryptography.io:cryptography:3.2:*:*:*:*:*:*:*
Vendors & Products Python-cryptography Project
Python-cryptography Project python-cryptography
Cryptography.io
Cryptography.io cryptography