Security update for claws-mail (moderate)

An update that fixes one vulnerability is now available.

Description:

This update for claws-mail fixes the following issues:

• Update to 3.17.6:
  * It is now possible to ‘Inherit Folder properties and processing rules
  from parent folder’ when creating new folders with the move message and
  copy message dialogues.
  * A Phishing warning is now shown when copying a phishing URL, (in
  addition to clicking a phishing URL).
  * The progress window when importing an mbox file is now more responsive.
  * A warning dialogue is shown if the selected privacy system is ‘None’
  and automatic signing amd/or encrypting is enabled.
  * Python plugin: pkgconfig is now used to check for python2. This enables
  the Python plugin (which uses python2) to be built on newer systems
  which have both python2 and python3.
• CVE-2020-15917: Fixed an improper handling of suffix data after STARTTLS
  is mishandled (boo#1174457).

This update was imported from the openSUSE:Leap:15.2:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Backports SLE-15-SP2:

  zypper in -t patch openSUSE-2020-1192=1