system
Describe <CVE-2018-20186>.
user
What is <CVE-2018-20186>?
assistant
An issue was discovered in Bento4 1.5.1-627. AP4_Sample::ReadData in Core/Ap4Sample.cpp allows attackers to trigger an attempted excessive memory allocation, related to AP4_DataBuffer::SetDataSize and AP4_DataBuffer::ReallocateBuffer in Core/Ap4DataBuffer.cpp..