file is a utility that guesses a file format by scanning binary data for patterns.
A flaw was found in the way the file utility determines the type of a file.
A remote attacker could entice a user to open a specially crafted file, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All file users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/file-5.17"