fltk vulnerabilities (crates.io)

3 vulnerabilities.

• fltk crates.io Out of bounds read in fltk CVE-2021-28308 Fix available 9.1 CriticalMarch 6, 2021
• fltk crates.io Null pointer deference in fltk CVE-2021-28307 Fix available 7.5 HighMarch 6, 2021
• fltk crates.io Null pointer deference in fltk CVE-2021-28306 Fix available 7.5 HighMarch 6, 2021