CVE-2023-50782

Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659

Published Feb 5, 2024 CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
Description
A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0496 A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
Github GHSA Github GHSA GHSA-3ww4-gg4f-jr7f Python Cryptography package vulnerable to Bleichenbacher timing oracle attack
Ubuntu USN Ubuntu USN USN-6673-1 python-cryptography vulnerabilities
Ubuntu USN Ubuntu USN USN-6673-2 python-cryptography vulnerability
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00707}

epss

{'score': 0.00726}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Couchbase
Couchbase couchbase Server
Cryptography.io
Cryptography.io cryptography
CPEs cpe:2.3:a:python-cryptography_project:python-cryptography:*:*:*:*:*:*:*:* cpe:2.3:a:couchbase:couchbase_server:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:couchbase:couchbase_server:7.6.1:*:*:*:*:*:*:*
cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:*
Vendors & Products Python-cryptography Project
Python-cryptography Project python-cryptography
Couchbase
Couchbase couchbase Server
Cryptography.io
Cryptography.io cryptography