Authenticated Thread Attacker Causes Device Denial of Service via OpenThread MLE Packet Vulnerabilities

Multiple vulnerabilities exist in OpenThread's handling of MLE packets. An authenticated attacker on the same Thread network could send specially crafted packets to cause a denial of service. These issues include triggerable assertion failures and a stack-based buffer overflow.

Unchecked length in Trusted Application on Google Nest Wifi Pro, leading to out of bounds read

Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a vulnerability and leak the secure memory from the Trusted Application

U-Boot environment is read from unauthenticated partition.

Authentication Bypass in OpenThread Boarder Router devices

There exists an authentication bypass vulnerability in OpenThread border router devices and implementations. This issue allows unauthenticated nodes to craft radio frames using “Key ID Mode 2”: a special mode using a static encryption key to bypass security checks, resulting in arbitrary IP packets being allowed on the Thread network. This provides a pathway for an attacker to send/receive arbitrary IPv6 packets to devices on the LAN, potentially exploiting them if they lack additional authentication or contain any network vulnerabilities that would normally be mitigated by the home router’s NAT firewall. Effected devices have been mitigated through an automatic update beyond the affected range.