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CVE-2021-21798

Description

An exploitable return of stack variable address vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a stack variable to go out of scope, resulting in the application dereferencing a stale pointer. This can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger the vulnerability.

POC

Reference

- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1267

Github

- https://github.com/ARPSyndicate/cve-scores