A vulnerability has been discovered in the way the Linux kernel handles specially crafted TCP packets. As a result of this vulnerability a remote attacker could overwhelm the CPU as a result cause a denial-of-service attack (DoS).
Opengear hardware including Console Servers and the Operations Manager OM2200 are not affected by this vulnerability.
Lighthouse 4 is unaffected by this vulnerability.
Lighthouse 5 release 5.2.2+ has patched this vulnerability. The latest Lighthouse release can be downloaded here.