CVE-2023-21646 Reachable Assertion in Modem
A reachable assertion in the Qualcomm modem allows a transient denial of service when processing invalid System Information Block 1.
- 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-2023-21646?
CVE-2023-21646 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 invalid System Information Block 1.
Weakness: CWE-617
Which versions are affected by CVE-2023-21646?
It affects 54 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6574a Firmware, Qualcomm Qca6595au Firmware, Qualcomm Qca6696 Firmware and 48 more.
How do I fix CVE-2023-21646?
No fix has been published for CVE-2023-21646 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-2023-21646 being exploited?
There is no known exploitation of CVE-2023-21646 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-g2g3-xc9m-vr7r.