CVE-2023-21653 Reachable Assertion in Modem

High 7.5 Published Updated

A reachable assertion in the Qualcomm Snapdragon modem allows attackers to cause a transient denial of service via RRC reconfiguration messages.

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-2023-21653?

CVE-2023-21653 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 5 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Transient DOS in Modem while processing RRC reconfiguration message.

Weakness: CWE-617

Which versions are affected by CVE-2023-21653?

It affects 10 products.

Products include Qualcomm Ar8035 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8337 Firmware, Qualcomm Qcn6024 Firmware, Qualcomm Qcn9024 Firmware, Qualcomm Sdx65 Firmware and 4 more.

How do I fix CVE-2023-21653?

No fix has been published for CVE-2023-21653 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-2023-21653 being exploited?

There is no known exploitation of CVE-2023-21653 in the wild and no public exploit code.

All Qualcomm Ar8035 Firmware vulnerabilities

Sources

Also known as GHSA-ghqc-wx9w-j5h4.

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