Updated python-cryptography packages fix security vulnerability
Publication date: 03 Nov 2018Modification date: 10 Nov 2018
Type: security
Affected Mageia releases : 6
CVE: CVE-2018-10903
Description
The python-cryptography and python-cryptography-vectors packages have been updated to version 2.3.1 and fixes the following security issue: The finalize_with_tag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalize_with_tag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing the MAC check. GCM tag forgeries can cause key leakage (CVE-2018-10903).
References
SRPMS
6/core
- python-cryptography-2.3.1-1.mga6
- python-cryptography-vectors-2.3.1-1.mga6
- python-asn1crypto-0.22.0-1.1.mga6
- python-cffi-1.7.0-1.mga6