Fedora: 2018-06c24068c6 Moderate: Python-Cryptography Tag Forgery Issue

cryptography is a package designed to expose cryptographic primitives and

recipes to Python developers.

# 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.

* Wed Jul 18 2018 Christian Heimes - 2.3-1

- New upstream release 2.3

- Fix AEAD tag truncation bug, RHBZ#1602752

* Sun Feb 18 2018 Christian Heimes - 2.0.2-4

- Build requires gcc

* Tue Oct 24 2017 Christian Heimes - 2.0.2-3

- Change Requires to openssl-libs

[ 1 ] Bug #1602752 - Possible tag truncation security bug in AEAD API

https://bugzilla.redhat.com/show_bug.cgi?id=1602752

su -c 'dnf upgrade --advisory FEDORA-2018-06c24068c6' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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