CVEs-PoC/2021/CVE-2021-1927.md

### [CVE-2021-1927](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1927)
![](https://img.shields.io/static/v1?label=Product&message=Snapdragon%20Auto%2C%20Snapdragon%20Compute%2C%20Snapdragon%20Connectivity%2C%20Snapdragon%20Consumer%20IOT%2C%20Snapdragon%20Industrial%20IOT%2C%20Snapdragon%20Mobile%2C%20Snapdragon%20Voice%20%26%20Music%2C%20Snapdragon%20Wearables%2C%20Snapdragon%20Wired%20Infrastructure%20and%20Networking&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=APQ8009%2C%20APQ8009W%2C%20APQ8017%2C%20APQ8053%2C%20AQT1000%2C%20AR8031%2C%20AR8035%2C%20AR9380%2C%20CSR8811%2C%20CSRA6620%2C%20CSRA6640%2C%20CSRB31024%2C%20FSM10055%2C%20FSM10056%2C%20IPQ4018%2C%20IPQ4019%2C%20IPQ4028%2C%20IPQ4029%2C%20IPQ5010%2C%20IPQ5018%2C%20IPQ6000%2C%20IPQ6005%2C%20IPQ6010%2C%20IPQ6018%2C%20IPQ6028%2C%20IPQ8064%2C%20IPQ8065%2C%20IPQ8068%2C%20IPQ8070%2C%20IPQ8070A%2C%20IPQ8071%2C%20IPQ8071A%2C%20IPQ8072%2C%20IPQ8072A%2C%20IPQ8074%2C%20IPQ8074A%2C%20IPQ8076%2C%20IPQ8076A%2C%20IPQ8078%2C%20IPQ8078A%2C%20IPQ8173%2C%20IPQ8174%2C%20MSM8909W%2C%20MSM8917%2C%20MSM8953%2C%20PM215%2C%20PM3003A%2C%20PM4125%2C%20PM4250%2C%20PM439%2C%20PM456%2C%20PM6125%2C%20PM6150%2C%20PM6150A%2C%20PM6150L%2C%20PM6250%2C%20PM6350%2C%20PM640A%2C%20PM640L%2C%20PM640P%2C%20PM660%2C%20PM660A%2C%20PM660L%2C%20PM670%2C%20PM670A%2C%20PM670L%2C%20PM7150A%2C%20PM7150L%2C%20PM7250%2C%20PM7250B%2C%20PM7350C%2C%20PM8004%2C%20PM8005%2C%20PM8008%2C%20PM8009%2C%20PM8150%2C%20PM8150A%2C%20PM8150B%2C%20PM8150C%2C%20PM8150L%2C%20PM8250%2C%20PM8350%2C%20PM8350B%2C%20PM8350BH%2C%20PM8350BHS%2C%20PM8350C%2C%20PM855%2C%20PM855A%2C%20PM855B%2C%20PM855L%2C%20PM855P%2C%20PM8909%2C%20PM8916%2C%20PM8937%2C%20PM8953%2C%20PM8998%2C%20PMC1000H%2C%20PMD9655%2C%20PME605%2C%20PMI632%2C%20PMI8937%2C%20PMI8952%2C%20PMI8998%2C%20PMK7350%2C%20PMK8002%2C%20PMK8003%2C%20PMK8350%2C%20PMM6155AU%2C%20PMM8155AU%2C%20PMM8195AU%2C%20PMM855AU%2C%20PMP8074%2C%20PMR525%2C%20PMR735A%2C%20PMR73%20...%5Btruncated*%5D%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Use%20After%20Free%20in%20DSP%20Services&color=brightgreen)

### 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

### POC

#### Reference
- https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin

#### Github
No PoCs found on GitHub currently.