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CVE-2020-13757

Status Candidate

Overview

Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

Related Files

Ubuntu Security Notice USN-4478-1
Posted Sep 1, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4478-1 - It was discovered that Python-RSA incorrectly handled certain ciphertexts. An attacker could possibly use this issue to obtain sensitive information.

tags | advisory, python
systems | linux, ubuntu
advisories | CVE-2020-13757
SHA-256 | 3005fbc73d2f33c3beb07eeea2aae787a8cd4846989b49ff0b6f25ba9b3ab8a0
Red Hat Security Advisory 2020-3541-01
Posted Aug 27, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3541-01 - 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.

tags | advisory, denial of service, vulnerability, xss, python
systems | linux, redhat
advisories | CVE-2019-16541, CVE-2020-13757, CVE-2020-1741, CVE-2020-2220, CVE-2020-2221, CVE-2020-2222, CVE-2020-2223, CVE-2020-2224, CVE-2020-2225, CVE-2020-2226
SHA-256 | 42d044757ced55aee7edf9844bfad23fe95bf3c3141361f974b7050950a43c55
Red Hat Security Advisory 2020-3453-01
Posted Aug 18, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3453-01 - 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. Issues addressed include cross site scripting and denial of service vulnerabilities.

tags | advisory, denial of service, vulnerability, xss, python
systems | linux, redhat
advisories | CVE-2020-13757, CVE-2020-2224, CVE-2020-2225, CVE-2020-2226
SHA-256 | dcba8ed7be6bf93cafc80deff5dd57772dc8ea7c104f758c6b9f084ddded22ca
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