The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size. (CVE-2018-5391 also known as FragmentSmack)
Impact
For products with vulnerable versions, this vulnerability allows a remote attacker to disrupt service. This vulnerability affects only the BIG-IP management port.
For products with Nonein the Versions known to be vulnerable column, there is no impact.