Siemens Sinamics Perfect Harmony Gh180 Firmware

An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.

A vulnerability has been identified in SINAMICS PERFECT HARMONY GH180 Drives MLFB 6SR32..-.....-.... MLFB 6SR4...-.....-.... MLFB 6SR5...-.....-.... With option A30 (HMIs 12 inches or larger) (All versions), SINAMICS PERFECT HARMONY GH180 Drives MLFB 6SR325.-.....-.... (High Availability) (All versions). The affected device contains a vulnerability that could allow an unauthenticated attacker to restore the affected device to a point where predefined application and operating system protection mechanisms are not in place. Successful exploitation requires physical access to the system, but no system privileges and no user interaction. An attacker could use the vulnerability to compromise confidentialiy, integrity and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.