Adobe Flash Player Use-After-Free Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 13/04/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| flash player | ≥ 11.0, ≤ 11.2.202.481≥ 13.0, ≤ 13.0.0.302≥ 18.0, ≤ 18.0.0.203≥ 18.0, ≤ 18.0.0.204 | |
| flash player desktop runtime | ≥ 18.0, ≤ 18.0.0.203 |
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.
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