Linux Distros Unpatched Vulnerability : CVE-2021-21392

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Synapse is a Matrix reference homeserver written in python pypi package matrix-synapse. Matrix is an ecosystem for open federated Instant Messaging and VoIP. In...

CVE-2021-21392 Open redirect via transitional IPv6 addresses on dual-stack networks

Synapse is a Matrix reference homeserver written in python pypi package matrix-synapse. Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6...

CVE-2021-21392

Synapse (matrix-synapse) prior to version 1.28.0 is affected by a vulnerability where requests to user-provided domains could escape external IP restrictions on dual-stack networks due to transitional IPv6 addresses. This may allow outbound requests to internal infrastructure during federation, i...