The server crashes if the HTTP-version is a string or a large enough number

The web-server crashes if the HTTP-version is a string or a large enough number, resulting in a 'std::out_of_range'

Example: GET / HTTP/1234719284712094438431847321028957104871039454857320872043580134852087623483324957823812098754

#0  0x00007ffff7a73355 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff7a5c853 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff7df586a in __gnu_cxx::__verbose_terminate_handler () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/vterminate.cc:95
#3  0x00007ffff7e01d8a in __cxxabiv1::__terminate (handler=<optimized out>) at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:48
#4  0x00007ffff7e01df7 in std::terminate () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:58
#5  0x00007ffff7e0209e in __cxxabiv1::__cxa_throw (obj=obj@entry=0x55555575cd90, tinfo=0x7ffff7f2e268 <typeinfo for std::out_of_range>, dest=0x7ffff7e17f90 <std::out_of_range::~out_of_range()>)
    at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_throw.cc:95
#6  0x00007ffff7df85bd in std::__throw_out_of_range (__s=0x555555704037 "stof") at /build/gcc/src/gcc/libstdc++-v3/src/c++11/functexcept.cc:82
#7  0x00005555556a4674 in __gnu_cxx::__stoa<float, float, char> (__convf=0x7ffff7a78730 <strtof32>, __name=0x555555704037 "stof", 
    __str=0x55555575a900 "12975146852734927179491379727501835798041028947128412847327456283472936532895283645269345298353293943759", __idx=0x0) at /usr/include/c++/10.1.0/ext/string_conversions.h:86
#8  0x000055555569609f in std::__cxx11::stof (__str="12975146852734927179491379727501835798041028947128412847327456283472936532895283645269345298353293943759", __idx=0x0) at /usr/include/c++/10.1.0/bits/basic_string.h:6573