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hackeroneBee13oyH1:139879
HistoryMay 19, 2016 - 9:56 p.m.

Internet Bug Bounty: Adobe Flash Player Regular Expression UAF Remote Code Execution Vulnerability

2016-05-1921:56:20
bee13oy
hackerone.com
18

0.013 Low

EPSS

Percentile

86.0%

I. Summary
There’s a UAF Vulnerability in the PCRE engine version used in Flash that could lead to Remote Code Execution.

II. Affected
Adobe Flash Player 11.5.502.135 ~ 20.0.0.286

III. Reference
Identified as CVE-2016-4121, and reported to Adobe directly.
https://helpx.adobe.com/security/products/flash-player/apsb16-15.html

Original report with an exploit demo which will pop up a calculator works well on fp_11.5.502.135 ~ fp_18.0.0.209 shows how to achieve Remote Code Execution.

IV. Credit
bee13oy of CloverSec Labs