-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2018-a9fe5e183e 2018-07-22 03:02:16.238629 --------------------------------------------------------------------------------
Name : python-cryptography Product : Fedora 28 Version : 2.3 Release : 1.fc28 URL : https://cryptography.io/en/latest/ Summary : PyCA's cryptography library Description : cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
-------------------------------------------------------------------------------- Update Information:
# New upstream release 2.3 Fixes possible tag truncation security bug in AEAD API, see RHBZ#1602752 ## 2.3 - 2018-07-18 * SECURITY ISSUE: finalize_with_tag() allowed tag truncation by default which can allow tag forgery in some cases. The method now enforces the min_tag_length provided to the GCM constructor. * Added support for Python 3.7. * Added extract_timestamp() to get the authenticated timestamp of a Fernet token. * Support for Python 2.7.x without hmac.compare_digest has been deprecated. We will require Python 2.7.7 or higher (or 2.7.6 on Ubuntu) in the next cryptography release. * Fixed multiple issues preventing cryptography from compiling against LibreSSL 2.7.x. * Added get_revoked_certificate_by_serial_number for quick serial number searches in CRLs. * The RelativeDistinguishedName class now preserves the order of attributes. Duplicate attributes now raise an error instead of silently discarding duplicates. * aes_key_unwrap() and aes_key_unwrap_with_padding() now raise InvalidUnwrap if the wrapped key is an invalid length, instead of ValueError. -------------------------------------------------------------------------------- ChangeLog:
* Wed Jul 18 2018 Christian Heimes cheimes@redhat.com - 2.3-1 - New upstream release 2.3 - Fix AEAD tag truncation bug, RHBZ#1602752 -------------------------------------------------------------------------------- References:
[ 1 ] Bug #1602752 - Possible tag truncation security bug in AEAD API https://bugzilla.redhat.com/show_bug.cgi?id=1602752 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2018-a9fe5e183e' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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