CVE-2020-3656 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Out-of-bounds access in MHI command processing allows attackers to execute arbitrary code or escalate privileges on affected Qualcomm Snapdragon devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-3656?
CVE-2020-3656 is a high-severity memory corruption vulnerability in Qualcomm Apq8009 Firmware, published on 9 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out of bound access can happen in MHI command process due to lack of check of command channel id value received from MHI devices in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, Kamorta, MDM9607, MSM8917, MSM8953, Nicobar, QCM2150, QCS405, QCS605, QM215, Rennell, SA6155P, SA8155P, Saipan, SC8180X, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM710, SDM845, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130
Weakness: CWE-120
Which versions are affected by CVE-2020-3656?
It affects 28 products.
Products include Qualcomm Apq8009 Firmware, Qualcomm Kamorta Firmware, Qualcomm Mdm9607 Firmware, Qualcomm Msm8917 Firmware, Qualcomm Msm8953 Firmware, Qualcomm Nicobar Firmware and 22 more.
How do I fix CVE-2020-3656?
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-2020-3656 being exploited?
There is no known exploitation of CVE-2020-3656 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Apq8009 Firmware
- CVE-2021-1905 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2020-11261 Qualcomm Multiple Chipsets Improper Input Validation
- CVE-2021-1906 Qualcomm Multiple Chipsets Detection of Error Condition Without Action
- CVE-2022-40510 Buffer copy without checking size of input in Audio.
- CVE-2022-22088 Integer Overflow to Buffer Overflow in Bluetooth HOST
Sources
Also known as 2580967, A-157905780, ASB-A-157905780, GHSA-j657-99m2-wp3h.