Upstream information

CVE-2021-42073 at MITRE


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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub for SUSE Linux Enterprise 15 SP3
  • barrier >= 2.4.0-bp153.2.3.1
openSUSE Leap 15.2
  • barrier >= 2.4.0-lp152.3.6.1
openSUSE Leap 15.3
  • barrier >= 2.4.0-bp153.2.3.1
openSUSE Tumbleweed
  • barrier >= 2.4.0-1.1
openSUSE Tumbleweed GA barrier-2.4.0-1.1