CVE-2020-13757

Python-RSA versión 4.1, ignora bytes '\0' principales durante la desencriptación del texto cifrado. Esto podría tener un impacto relevante para la seguridad, por ejemplo, al ayudar a un atacante a inferir que una aplicación utiliza Python-RSA, o si la longitud del texto cifrado aceptado afecta al comportamiento de la aplicación (por ejemplo, al causar una asignación excesiva de memoria)

A flaw was found in the python-rsa package, where it does not explicitly check the ciphertext length against the key size and ignores the leading 0 bytes during the decryption of the ciphertext. This flaw allows an attacker to perform a ciphertext attack, leading to a denial of service. The highest threat from this vulnerability is to confidentiality.

Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron. The Matrix Project is a module which handles creating Jenkins multi-configuration projects. Matrix Authorization allows configuring the lowest level permissions, such as starting new builds, configuring items, or deleting them, individually. Python-RSA is a RSA implementation in Python. It can be used as a Python library as well as the commandline utility. Ansible is a SSH-based configuration management, deployment, and task execution system. The openshift-ansible packages contain Ansible code and playbooks for installing and upgrading OpenShift Container Platform 3. Issues addressed include cross site scripting, denial of service, and information leakage vulnerabilities.