OTFCC is Caryll open source a C library and utilities. It is used to parse and write OpenType font files. OTFCC version 0.10.4 contains a code issue vulnerability that stems from a lack of proper validation of user-supplied data in the /x86_64-linux-gnu/libc.so.6 0xbb384 file, which can be exploited by an attacker to cause a program denial of service.