Use-after-free error in Adobe Flash Player and Adobe Flash Player for Linux - CVE-2016-7855
Published: October 26, 2016 / Updated: March 8, 2022
Vulnerability identifier: #VU1078
CSH Severity: Critical
CVSS v4.0: 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/E:A/U:Red
CVE-ID: CVE-2016-7855
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Adobe
Affected software:
Adobe Flash Player
Adobe Flash Player for Linux
Adobe Flash Player
Adobe Flash Player for Linux
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use-after-free error when handling .swf files. A remote attacker can trick the victim to visit a website or open a file with malicious Flash file and execute arbitrary code on the target system with privileges of the current user.
Note: this vulnerability was being actively exploited in the wild.
How to mitigate CVE-2016-7855
The vulnerability is fixed in version 23.0.0.205 for Windows, Macintosh, Linux and Chrome OS and in version 11.2.202.643 for Linux.