CVE-2023-33043 Reachable Assertion in Modem

High 7.5 Published Updated

A reachable assertion in the modem firmware allows a transient denial of service when handling specific beam switch requests.

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-2023-33043?

CVE-2023-33043 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 5 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Transient DOS in Modem when a Beam switch request is made with a non-configured BWP.

Weakness: CWE-617

Which versions are affected by CVE-2023-33043?

It affects 59 products.

Products include Qualcomm Ar8035 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8337 Firmware, Qualcomm Qcm4490 Firmware, Qualcomm Qcm6490 Firmware and 53 more.

How do I fix CVE-2023-33043?

No fix has been published for CVE-2023-33043 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-2023-33043 being exploited?

There is no known exploitation of CVE-2023-33043 in the wild and no public exploit code.

All Qualcomm Ar8035 Firmware vulnerabilities

Sources

Also known as GHSA-pqhc-9r4h-w7g3.

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