An information-disclosure vulnerability exists on select NXP devices when configured in Serial Download Protocol (SDP) mode: i.MX RT 1010, i.MX RT 1015, i.MX RT 1020, i.MX RT 1050, i.MX RT 1060, i.MX 6 Family, i.MX 7Dual/Solo, i.MX 7ULP, i.MX 8M Quad, i.MX 8M Mini, and Vybrid. In a device security-enabled configuration, memory contents could potentially leak to physically proximate attackers via the respective SDP port in cold and warm boot attacks. (The recommended mitigation is to completely disable the SDP mode by programming a one-time programmable eFUSE. Customers can contact NXP for additional information.)

A stack-based buffer overflow issue was discovered in NXP i.MX 50, i.MX 53, i.MX 6ULL, i.MX 6UltraLite, i.MX 6SoloLite, i.MX 6Solo, i.MX 6DualLite, i.MX 6SoloX, i.MX 6Dual, i.MX 6Quad, i.MX 6DualPlus, i.MX 6QuadPlus, Vybrid VF3xx, Vybrid VF5xx, and Vybrid VF6xx. When the device is configured in security enabled configuration, SDP could be used to download a small section of code to an unprotected region of memory.

An improper certificate validation issue was discovered in NXP i.MX 28 i.MX 50, i.MX 53, i.MX 7Solo i.MX 7Dual Vybrid VF3xx, Vybrid VF5xx, Vybrid VF6xx, i.MX 6ULL, i.MX 6UltraLite, i.MX 6SoloLite, i.MX 6Solo, i.MX 6DualLite, i.MX 6SoloX, i.MX 6Dual, i.MX 6Quad, i.MX 6DualPlus, and i.MX 6QuadPlus. When the device is configured in security enabled configuration, under certain conditions it is possible to bypass the signature verification by using a specially crafted certificate leading to the execution of an unsigned image.