voici ce que j'ai quand je fais apt-cache :
Package: adobe-flashplugin
Priority: optional
Section: web
Installed-Size: 36261
Maintainer: DL-Flash Player Ubuntu <FlashPlayerUbuntu@adobe.com>
Architecture: amd64
Version: 1:20161213.1-0ubuntu0.16.10.1
Recommends: adobe-flash-properties-gtk (= 1:20161213.1-0ubuntu0.16.10.1) | adobe-flash-properties-kde (= 1:20161213.1-0ubuntu0.16.10.1)
Replaces: flashplugin (<< 6)
Suggests: firefox | chromium-browser, x-ttcidfont-conf, msttcorefonts, ttf-bitstream-vera | ttf-dejavu, ttf-xfree86-nonfree, xfs (>= 1:1.0.1-5), libnspr4-0d, libnss3-1d
Provides: flashplugin-nonfree
Depends: wget, fontconfig, libc6 (>= 2.11), libfontconfig1 (>= 2.11.94), libfreetype6 (>= 2.2.1), libgcc1 (>= 1:3.0), libgdk-pixbuf2.0-0 (>= 2.22.0), libgl1-mesa-glx | libgl1, libglib2.0-0 (>= 2.22.0), libgtk2.0-0 (>= 2.24.0), libnspr4 (>= 2:4.9-2~) | libnspr4-0d (>= 1.8.0.10), libnss3 (>= 2:3.13.4-2~), libpango-1.0-0 (>= 1.14.0), libstdc++6 (>= 4.3), libx11-6, libxt6
Conflicts: flashplayer-mozilla, flashplugin (<< 6), flashplugin-downloader, flashplugin-installer, xfs (<< 1:1.0.1-5)
Filename: pool/partner/a/adobe-flashplugin/adobe-flashplugin_20161213.1-0ubuntu0.16.10.1_amd64.deb
Size: 10273574
MD5sum: 7a3863dddfd2bef551b7038ff5468085
SHA1: c5582b916a0cc9c9652ddfa48ecbad048e9ffc53
SHA256: 7c08c713a87cea53a2463f81d8b321733931ff19f57276436409130c40fd8b96
Description-en: Adobe Flash Player plugin
Adobe® Flash® Player is a cross-platform, browser-based application runtime
that provides uncompromised viewing of expressive applications, content, and
videos across browsers and operating systems.
.
This package provides plugins compatible with both Chromium and Mozilla based
web browsers
Description-md5: 4414ca68dbd37fdc3008c70a8a107946
Npp-File: libflashplayer.so
Npp-Mimetype: application/x-shockwave-flash
Npp-Applications: ec8030f7-c20a-464f-9b0e-13a3a9e97384, 92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a, aa5ca914-c309-495d-91cf-3141bbb04115
Npp-Description: Adobe Flash Plugin ([url]http://www.adobe.com[/url])
Npp-Name: Adobe Flash Plugin
à part la version "date", je ne vois pas d'autres informations sur la version
Modération : merci à l'avenir d'utiliser les balises code (explications ici).