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SUSE-SU-2018:3392-1

Опубликовано: 24 окт. 2018
Источник: suse-cvrf

Описание

Security update for python-cryptography

This update for python-cryptography fixes the following issues:

  • CVE-2018-10903: 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 could have caused key leakage (bsc#1101820).

Список пакетов

SUSE Linux Enterprise Module for Basesystem 15
python2-cryptography-2.1.4-4.3.1
python3-cryptography-2.1.4-4.3.1

Ссылки

Описание

A flaw was found in python-cryptography versions between >=1.9.0 and <2.3. 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.

Затронутые продукты
SUSE Linux Enterprise Module for Basesystem 15:python2-cryptography-2.1.4-4.3.1
SUSE Linux Enterprise Module for Basesystem 15:python3-cryptography-2.1.4-4.3.1
Ссылки