[kmail2] [Bug 411999] New: kmail crashes on a base64 encoded PDF file

[Erwin Lam]

https://bugs.kde.org/show_bug.cgi?id=411999

            Bug ID: 411999
           Summary: kmail crashes on a base64 encoded PDF file
           Product: kmail2
           Version: 5.12.1
          Platform: openSUSE RPMs
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: erwinl at dds.nl
  Target Milestone: ---

Created attachment 122695
  --> https://bugs.kde.org/attachment.cgi?id=122695&action=edit
GDB backtrace

SUMMARY

I received a base64 encoded PDF file (a newsletter) from a family member. When
the message with the attachment appeared into my inbox, kmail crashed
immediately. After removing the message from the inbox, kmail could be started
again and worked flawlessly.

STEPS TO REPRODUCE
1. Put mail with base64 encoded PDF in inbox
2. Start kmail.
3. kmail crashes immediately. No time to even open the offending e-mail.
4. Remove the offending message from the inbox.
5. Restart kmail.
6. kmail works again flawlessly.


OBSERVED RESULT
kmail crashes as soon as the e-mail appears in the inbox.

EXPECTED RESULT
kmail does not crash and I would be able to read the message.

SOFTWARE/OS VERSIONS
Linux: openSUSE Leap 15.1
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.62.0
Qt Version: 5.13.1

ADDITIONAL INFORMATION
Attache backtrace & the offending e-mail message.

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