Use-after-free in Adobe Flash Player - CVE-2018-4878

Vulnerability identifier: #VU10355

CSH Severity: Critical

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-4878

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a use-after-free error when processing .swf files. A remote attacker can execute arbitrary code on the target system.

Note: this vulnerability is being actively exploited in the wild against the latest version of Adobe Flash Player.

UPDATE: The vendor has issued the fixed version on February 6, 2018.

Adobe Flash Player
Gentoo Linux
Microsoft Windows
Red Hat Enterprise Linux for x86_64
Windows Server

Update to version 28.0.0.161.

• Exploit #6365 - Flash ActiveX 28.0.0.137 - Code Execution (2) (June 17, 2021)
• Exploit #6366 - Flash ActiveX 28.0.0.137 - Code Execution (1) (June 17, 2021)
• Exploit #6310 - Adobe Flash < 28.0.0.161 - Use-After-Free (June 17, 2021)
• Exploit #179 - CVE-2018-4878 (Flash Exploit Poc) (March 18, 2020)

• https://helpx.adobe.com/security/products/flash-player/apsa18-01.html
• https://helpx.adobe.com/security/products/flash-player/apsb18-03.html

• Remote code execution in Adobe Flash Player
• Microsoft update for Adobe Flash Player
• Red Hat update for Adobe Flash Player
• Gentoo update for Adobe Flash Player