SilverCity provides lexical analysis for over 20 programming and markup languages.
The SilverCity package installs three executable files with insecure permissions.
A local attacker could modify the executable files, causing arbitrary code to be executed with the permissions of an unsuspecting SilverCity user.
There are no known workarounds at this time.
All SilverCity users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/silvercity-0.9.5-r1"