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npp-plugins / mimetools

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Running Base64 Decode with certain strings causes memory consumption and application to stop responding. #6

Closed mak0t0san closed 5 years ago

mak0t0san commented 5 years ago

Create a new document in Notepad++ and paste in the following string: lEJk24X1wEOA5CE0hPoa/g==

Highlight the text and then right-click, and choose "Plugin commands > Base64 Decode".

Notepad++'s memory usage will quickly increase, and the program becomes unresponsive.

donho commented 5 years ago

@mak0t0san Thank you for your report. I cannot reproduce on Notepad++ v7.6.2 and MimeTools v2.2. Could you provide your Notepad++ version and MimeTools version?

mak0t0san commented 5 years ago

Notepad++ v7.6.2 (64-bit) Build time : Jan 1 2019 - 00:02:38 Path : C:\Program Files\Notepad++\notepad++.exe Admin mode : OFF Local Conf mode : OFF OS : Windows 10 (64-bit) Plugins : DSpellCheck.dll JSMinNPP.dll mimeTools.dll NppConverter.dll NPPJSONViewer.dll

Using Mime tools 2.2 as well.

Someone else posted a similar issue in the notepad-plus-plus repository: https://github.com/notepad-plus-plus/notepad-plus-plus/issues/5042

This happens when using the UTF-8 encoding. Using another encoding like ANSI does not cause this issue. However, if Base64 Decode while in ANSI encoding, then switch to UTF-8, and then type in any text, it will freeze.

UPDATE: Updating DSpellCheck to 1.4.9 fixed this issue. Seems to have been a problem with the spell check plug-in that's been resolved.