CVE-2021-35093 Memory corruption in BlueCore
A memory corruption flaw in Qualcomm BlueCore Bluetooth controllers allows attackers to cause a denial of service via oversized LMP packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-35093?
CVE-2021-35093 is a medium-severity memory corruption vulnerability in Qualcomm, Inc. BlueCore, published on 3 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Possible memory corruption in BT controller when it receives an oversized LMP packet over 2-DH1 link and leads to denial of service in BlueCore
Weakness: CWE-787
Which versions are affected by CVE-2021-35093?
It affects 2 products.
Products include Qualcomm Csr8510 A10 Firmware, Qualcomm Csr8811 A12 Firmware.
How do I fix CVE-2021-35093?
No fix has been published for CVE-2021-35093 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-35093 being exploited?
There is no known exploitation of CVE-2021-35093 in the wild and no public exploit code.
Sources
Also known as GHSA-rpvg-f3f8-67g6.