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CVE-2021-21198

Description

Out of bounds read in IPC in Google Chrome prior to 89.0.4389.114 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

POC

Reference

- http://packetstormsecurity.com/files/162973/Chrome-Legacy-ipc-Message-Passed-Via-Shared-Memory.html

Github

- https://github.com/StarCrossPortal/bug-hunting-101

- https://github.com/n0-traces/cve_monitor