It looks as though there is a security vulnerability in this version. CVE-2015-3113: https://helpx.adobe.com/security/products/flash-player/apsb15-14.html I believe simply changing the version number will work for this :)
Arch teams, please test and mark stable: =www-plugins/adobe-flash-11.2.202.468 Targeted stable KEYWORDS : amd64 x86
x86 stable
amd64 stable. Maintainer(s), please cleanup. Security, please add it to the existing request, or file a new one.
CVE-2015-3113 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3113): Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in June 2015.
Cleanup was done by maintainer GLSA request filed
This issue was resolved and addressed in GLSA 201507-13 at https://security.gentoo.org/glsa/201507-13 by GLSA coordinator Kristian Fiskerstrand (K_F).