CVE-2021-1927 Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
A use-after-free vulnerability in the FastRPC driver allows attackers to execute arbitrary code or escalate privileges on Qualcomm Snapdragon devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-1927?
CVE-2021-1927 is a high-severity use after free vulnerability in Qualcomm Apq8009 Firmware, published on 7 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Possible use after free due to lack of null check while memory is being freed in FastRPC driver in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
Weakness: CWE-416
Which versions are affected by CVE-2021-1927?
It affects 457 products.
Products include Qualcomm Apq8009 Firmware, Qualcomm Apq8009w Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8053 Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware and 451 more.
How do I fix CVE-2021-1927?
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-2021-1927 being exploited?
There is no known exploitation of CVE-2021-1927 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 2827356, A-179040600, ASB-A-179040600, GHSA-w3f6-cx38-wfwx.