Nextcloud Desktop Client: User-assisted execution of arbitrary code — GLSA 202105-37

A vulnerability in Nextcloud Desktop Client could allow a remote attacker to execute arbitrary commands.

Affected packages

Package	net-misc/nextcloud-client on all architectures
Affected versions	< 3.1.3
Unaffected versions	>= 3.1.3

Background

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer.

Description

It was discovered that Nextcloud Desktop Client did not validate URLs.

Impact

A remote attacker could entice a user to connect to a malicious Nextcloud server to cause the execution of arbitrary commands with the privileges of the user running the Nextcloud Desktop Client application.

Workaround

There is no known workaround at this time.

Resolution

All Nextcloud Desktop Client users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/nextcloud-client-3.1.3"

References

CVE-2021-22879

Release date
May 26, 2021

Latest revision
May 26, 2021: 1

Severity
normal

Exploitable
remote

Bugzilla entries

783531