cadaver is a command-line WebDAV client.
Stefan Esser discovered a vulnerability in the code of the neon library (see GLSA 200405-13). This library is also included in cadaver.
When connected to a malicious WebDAV server, this vulnerability could allow remote execution of arbitrary code with the rights of the user running cadaver.
There is no known workaround at this time. All users are advised to upgrade to the latest available version of cadaver.
All users of cadaver should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-misc/cadaver-0.22.2"
# emerge ">=net-misc/cadaver-0.22.2"