CVE-2023-43539 Buffer Over-read in WLAN Firmware
A buffer over-read in Qualcomm Snapdragon WLAN firmware allows attackers to cause a transient denial of service via malformed 802.11az frames.
- 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-2023-43539?
CVE-2023-43539 is a high-severity denial of service vulnerability in Qualcomm Ar8035 Firmware, published on 4 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transient DOS while processing an improperly formatted 802.11az Fine Time Measurement protocol frame.
Which versions are affected by CVE-2023-43539?
It affects 137 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Immersive Home 214 Firmware and 131 more.
How do I fix CVE-2023-43539?
No fix has been published for CVE-2023-43539 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-2023-43539 being exploited?
There is no known exploitation of CVE-2023-43539 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-r456-h7vj-7pm5.