CVE-2022-40538 Reachable assertion in Modem
A reachable assertion in the modem allows a remote attacker to cause a transient denial of service by sending malformed system information blocks.
- 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-2022-40538?
CVE-2022-40538 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 6 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS due to reachable assertion in modem while processing sib with incorrect values from network.
Weakness: CWE-617
Which versions are affected by CVE-2022-40538?
It affects 13 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8337 Firmware, Qualcomm Qcn6024 Firmware, Qualcomm Qcn9024 Firmware, Qualcomm Qcs8550 Firmware and 7 more.
How do I fix CVE-2022-40538?
No fix has been published for CVE-2022-40538 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-2022-40538 being exploited?
There is no known exploitation of CVE-2022-40538 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
- CVE-2023-33106 Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset
- CVE-2024-45569 Improper Validation of Array Index in WLAN Host Communication
- CVE-2024-21473 Improper Input Validation in WIN SON
- CVE-2023-28582 Buffer Copy Without Checking Size of Input in Data Modem
- CVE-2023-43552 Use After Free in WLAN Host Communication
Sources
Also known as GHSA-c9r2-56cr-xpqg.