An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server. References: https://github.com/debauchee/barrier/releases/tag/v2.4.0 http://www.openwall.com/lists/oss-security/2021/11/02/4
Created barrier tracking bugs for this issue: Affects: epel-8 [bug 2022100] Affects: fedora-all [bug 2022099]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.