Unisoc, a Chinese chipmaker, has seized the opportunity given by the worldwide chip scarcity and is now attempting to replace MediaTek in the affordable smartphone market, while the Taiwanese business concentrates on conquering the premium market.
As a result of this increase, the firm is subjected to more scrutiny. While some of the company's older chips have been identified as a risk, a new vulnerability has been discovered that specifically targets a Unisoc chip present in three Motorola handsets.
The Unisoc Tiger T700 chip, which powers the Motorola Moto G20, E30, and E40 handsets, has been revealed to have a vulnerability when the cellular modem attempts to connect to an LTE network, according to a research by Checkpoint Research.
It omits the check to see if the modem's connection handler is reading a valid IMSI or other subscriber ID. A stack overflow occurs when the handler reads a zero-digit field, which can be abused for a denial of service attack or remote code execution, thus disconnecting the user from the LTE network.
Last month, Checkpoint Research alerted Unisoc of the issue, which the business rated as a critical risk with a 9.4 out of 10 rating and swiftly fixed. Users may receive the fix shortly, most likely as part of the upcoming Android security bulletin.
Although there have been no instances of this defect being exploited, it remains a significant issue, particularly because most Unisoc chips are found in low-cost cellphones that receive few software updates.
