CVE-2023-43520 Stack-based Buffer Overflow in WLAN HOST
A stack-based buffer overflow in Qualcomm WLAN HOST allows attackers to execute arbitrary code or escalate privileges via malicious beacon frames.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-43520?
CVE-2023-43520 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 Firmware, published on 6 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Memory corruption when AP includes TID to link mapping IE in the beacons and STA is parsing the beacon TID to link mapping IE.
Which versions are affected by CVE-2023-43520?
It affects 70 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Flight Rb5 5g Platform Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8650p Firmware and 64 more.
How do I fix CVE-2023-43520?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-43520 being exploited?
There is no known exploitation of CVE-2023-43520 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 3575335, A-309461173, ASB-A-309461173, GHSA-fv23-fj7r-w7w4.