CVE-2020-11239 Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
A use-after-free vulnerability in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via improper DMA buffer attachment cleanup.
- 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-2020-11239?
CVE-2020-11239 is a high-severity use after free vulnerability in Qualcomm Apq8009 Firmware, published on 9 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use after free issue when importing a DMA buffer by using the CPU address of the buffer due to attachment is not cleaned up properly in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Weakness: CWE-416
Which versions are affected by CVE-2020-11239?
It affects 406 products.
Products include Qualcomm Apq8009 Firmware, Qualcomm Apq8009w Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8037 Firmware, Qualcomm Apq8053 Firmware, Qualcomm Apq8064au Firmware and 400 more.
How do I fix CVE-2020-11239?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-11239 being exploited?
There is no known exploitation of CVE-2020-11239 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 2744826, A-168722551, ASB-A-168722551, GHSA-c7hv-342m-6j93.