high
7.5
CWE
208 203
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2023-50782: Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659

First published: Wed Dec 13 2023(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/cryptography<42.0.0
42.0.0
pip/cryptography<42.0.0
42.0.0
debian/python-cryptography<=3.3.2-1<=3.3.2-1+deb11u1<=38.0.4-3+deb12u1<=38.0.4-3~deb12u1
43.0.0-1
redhat ANSIBLE automation platform=2.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0
Red Hat Update Infrastructure=4
cryptography.io cryptography python<42.0.0
Couchbase Server=7.6.0
Couchbase Server=7.6.1
IBM Storage Defender Resiliency Service<=2.0.0 - 2.0.9

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-50782?

    CVE-2023-50782 is considered a critical vulnerability due to the potential exposure of confidential data.

  • How do I fix CVE-2023-50782?

    To fix CVE-2023-50782, upgrade the python-cryptography package to version 42.0.0 or higher.

  • Which systems are affected by CVE-2023-50782?

    CVE-2023-50782 affects versions of the python-cryptography package below 42.0.0.

  • Can CVE-2023-50782 lead to data breaches?

    Yes, CVE-2023-50782 could allow remote attackers to decrypt messages leading to potential data breaches.

  • What is the nature of the vulnerability in CVE-2023-50782?

    The vulnerability in CVE-2023-50782 arises from inadequate protection of RSA key exchanges in TLS servers.

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