RHSA-2021:1608: Moderate: python-cryptography security, bug fix, and enhancement update
The python-cryptography packages contain a Python Cryptographic Authority's (PyCA's) cryptography library, which provides cryptographic primitives and recipes to Python developers.The following packages have been upgraded to a later upstream version: python-cryptography (3.2.1). (BZ#1873581, BZ#1891947)Security Fix(es): python-cryptography: bleichenbacher timing oracle attack against RSA decryption (CVE-2020-25659) python-cryptography: certain sequences of update() calls when symmetrically encrypting very large payloads could result in an integer overflow and lead to buffer overflows (CVE-2020-36242) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:1608?
The severity of RHSA-2021:1608 is categorized as important.
How do I fix RHSA-2021:1608?
To fix RHSA-2021:1608, you should upgrade to python-cryptography version 3.2.1-4.el8 or later.
Which packages are affected by RHSA-2021:1608?
The affected packages include python-cryptography, python3-cryptography, and their related debug source packages.
Is RHSA-2021:1608 related to cryptographic vulnerabilities?
Yes, RHSA-2021:1608 addresses vulnerabilities within the cryptography library affecting its use in Python applications.
What should I do if I cannot upgrade to the recommended version for RHSA-2021:1608?
If you cannot upgrade, consider mitigating risks by monitoring for exploit attempts and reviewing application security practices.