A buffer over-read in Fortinet FortiOS versions 7.4.0 through 7.4.3, versions 7.2.0 through 7.2.7, and versions 7.0.0 through 7.0.14 may allow a remote unauthenticated attacker to crash the FGFM daemon via a specially crafted request, under rare conditions that are outside of the attackers control.
The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.