description: An exploitable heap overflow vulnerability exists in the Fiddle::Function.new "initialize" function functionality of Ruby. In Fiddle::Function.new "initialize" heap buffer "arg_types" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.
problem types: heap overflow vulnerability
affected:
{
product: Ruby
vendor: Ruby
versions:
status: affected, version: 2.3.0 dev
status: affected, version: 2.2.2
}