RLSA-2021:1608

Dashboard / Vulnerabilities / RLSA-2021:1608

RLSA-2021:1608

Summary: Moderate: python-cryptography security, bug fix, and enhancement update

Details: 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 Rocky Linux 8.4 Release Notes linked from the References section.

References: https://errata.rockylinux.org/RLSA-2021:1608, https://bugzilla.redhat.com/show_bug.cgi?id=1778939, https://bugzilla.redhat.com/show_bug.cgi?id=1873581, https://bugzilla.redhat.com/show_bug.cgi?id=1889988, https://bugzilla.redhat.com/show_bug.cgi?id=1891947, https://bugzilla.redhat.com/show_bug.cgi?id=1907429, https://bugzilla.redhat.com/show_bug.cgi?id=1926226