An issue was discovered in fast_ber up to v0.4. yy::yylex() in asn_compiler.hpp has a heap-based buffer over-read.
CWE-125 - Out-of-Bounds Read
Out-of-bounds read is a vulnerability that allows access to memory beyond the authorized accessible location. Such a vulnerability compromises the confidentiality of the trusted environment in the application and enables an attacker to launch further attacks by leveraging the exposed information.