A critical vulnerability in the system UNISOC modem firmware Found by (Chinese semiconductor company) Check Point Research (CPR). The breach affects millions of Android mobile devices worldwide, as at the end of 2021 the manufacturer had an 11% share of the global market. It produces chipsets that power connectivity equipment ranging from 2G to 5G.

According to Check Point Software Technologies’ Threat Intelligence section, if the problem is not fixed, it could be used by attackers who want to disable modem services and block communication from a specific location via a packet sent by radio stations.

The discovery was made by reverse engineering and scanning the message handlers of a set of protocols called NAS (Non-Access Layer). In any case, the research points out that this doesn’t apply to Google’s operating system.

UNISOC acknowledged the vulnerability after receiving information from the CPR in May 2022.

What should you do to protect yourself?

For now, Slava Makkaveev, a security and reverse engineering researcher at Check Point Software Technologies, says: There is nothing Android users can do. “The vulnerability is in the modem’s firmware, not Android itself,” he adds.

Still, Google reported will release a patch patch In the upcoming OS security bulletin – and Makkaveev advises system users to implement this after it is released by the search giant.

Keeping the operating systems up to date no matter what, is of great importance due to events such as reported.

Source: Tec Mundo

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