A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.
Created nasm tracking bugs for this issue:
Affects: fedora-all [bug 1670705]
This issue did not affect the versions of nasm as shipped with Red Hat Enterprise Linux 5, 6, and 7.