CVE-2023-21667 Buffer Over-read in Bluetooth HOST
A buffer over-read in the Bluetooth HOST component allows attackers to cause a transient denial of service on Android devices using Qualcomm Snapdragon chipsets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-21667?
CVE-2023-21667 is a medium-severity denial of service vulnerability in Qualcomm Qca6390 Firmware, published on 5 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Transient DOS in Bluetooth HOST while passing descriptor to validate the blacklisted BT keyboard.
Which versions are affected by CVE-2023-21667?
It affects 43 products.
Products include Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6436 Firmware, Qualcomm Qca6574au Firmware, Qualcomm Qca6595au Firmware and 37 more.
How do I fix CVE-2023-21667?
Apply the vendor's patch.
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-2023-21667 being exploited?
There is no known exploitation of CVE-2023-21667 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Qca6390 Firmware
- CVE-2021-30336 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Wearables
- CVE-2020-11156 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
- CVE-2023-21647 Improper Input Validation in Bluetooth HOST
- CVE-2021-30314 Information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables
- CVE-2019-10618 Null dereference in Snapdragon Connectivity
Sources
Also known as 3306293, A-271904738, GHSA-p54g-g6xw-2jm9, PUB-A-271904738.