please update gsfonts to the latest release
The latest gsfonts now have extended and improved cyrillic and greek glyphs:
"URW++ update to base 35 from June 2016.
This extends the Greek and Cyrillic glyphs originally supplied in only three
font families to cover all the relevant fonts in the base 35."
Furthermore the fonts are finally available as opentype and truetype fonts, making them usable in modern applications (libreoffice stops supporting type1 fonts beginning with 5.3)