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CVE-2021-1940

Status Candidate

Overview

Use after free can occur due to improper handling of response from firmware in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Related Files

Qualcomm NPU Use-After-Free / Information Leak
Posted Jun 11, 2023
Authored by Man Yue Mo, GitHub Security Lab

Proof of concept code that exploits three bugs that can be used to gain arbitrary kernel code execution, read and write from the untrusted app domain. Kernel code is executed in the context of the root user and the exploit also disable SELinux. The exploit is tested on Samsung Galaxy A71 with firmware version A715FXXU3BUB5, Baseband A715FXXU3BUB4 and Kernel version 4.14.190-20973144.

tags | exploit, arbitrary, kernel, root, code execution, proof of concept
advisories | CVE-2021-1940, CVE-2021-1968, CVE-2021-1969
SHA-256 | d7fb13a8e212690bea66fdff3ce4d52d05a239e824796af7a580b4f67ac5a57d
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