CVE-2023-32844 Denial of service in MT2735, MT2737, MT6297, MT6298, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895T, MT6896, MT6897, MT6980, MT6980D, MT6983, MT6985, MT6989, MT6990

High 7.5 Published Updated

Remote attackers can cause a system crash in MediaTek 5G modems by sending malformed RRC messages, requiring no user interaction or privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-32844?

CVE-2023-32844 is a high-severity denial of service vulnerability in Mediatek Nr15, published on 4 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In 5G Modem, there is a possible system crash due to improper error handling. This could lead to remote denial of service when receiving malformed RRC messages, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01128524; Issue ID: MOLY01130183 (MSV-850).

Weakness: CWE-617

Which versions are affected by CVE-2023-32844?

It affects 3 products.

Products include Mediatek Nr15, Mediatek Nr16, Mediatek Nr17.

How do I fix CVE-2023-32844?

No fix has been published for CVE-2023-32844 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-32844 being exploited?

There is no known exploitation of CVE-2023-32844 in the wild and no public exploit code.

All Mediatek Nr15 vulnerabilities

Sources

Also known as GHSA-4xvw-5jfq-r7fh.

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