Zimbra Releases/8.7.11/P13

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Zimbra Collaboration 8.7.11 Patch 13 GA Release

Check out the Fixed Issues for this version of Zimbra Collaboration. Please refer the Patch Installation section for Patch Installation instructions. As always, you are encouraged to tell us what you think in the Forums or open a support ticket to report issues.

NOTE: If you are upgrading or migrating from an older version of Zimbra to Zimbra 8.8 Production Ready, please read Things to Know Before Upgrading and First Steps with the Zimbra NG Modules for critical information before you upgrade.

Software changes

Fixed Issues

  • OWASP related fixes which impact the inline and attached images in an email.
    • After the upgrade, when replying to a mail with a signature containing an image, this image is no longer being added as an attachment every 10-20 seconds
    • The images contained in an email print fine, are now visible and no longer appear broken.
    • Inline & signature images now do not appear as attachment on replying and forwarding of an email.
    • Creating a signature through ZCO does not insert extra linebreaks within a signature.
    • Fixed issues with HTML Mail rendering.

Known Issues

  • In order to prevent XSS attacks hence providing better security, new defanger implementation eliminates the display attribute from html emails, the rendering of such html messages on Webclient will be affected. Here are the known rendering impacts:
    • Owasp removes css "display" attribute from html tags and affects HTML body content layout in mail reading pane.

Patch Installation

Before Installing the Patch

Before installing the patch, consider the following:

  • Zimbra Collaboration patches can be found at https://www.zimbra.com/downloads/zimbra-collaboration/
  • Patches are cumulative and delivered as a TGZ file.
  • A full backup should be performed before any patch is applied. There is no automated roll-back.
  • Zimlet patches can include removing existing Zimlets and redeploying the patched Zimlet.
  • Only files or Zimlets associated with installed packages will be installed from the patch.
  • Switch to user zimbra before using ZCS CLI commands.
  • Important! You cannot revert to the previous ZCS release after you upgrade to the patch.

Install the Patch

Note: This patch should be installed only on all mailbox nodes running in your environment.

1. Before you begin, confirm you have the following:

  • Zimbra Collaboration 8.7.11 GA installed
  • Zimbra Collaboration 8.7.11 Patch 13 TGZ file

2. Copy the patch.tgz file(s) to your server.

3. Install Zimbra Collaboration 8.7.11 Patch 13

  • a. Log in as root and cd to the directory where the tar file is saved. Type
tar xzf zcs-patch-8.7.11_GA_XXX.tgz
cd zcs-patch-8.7.11_GA_XXX
  • b. As root, install the patch. Type
./installPatch.sh
  • c. Switch to user zimbra
su – zimbra
  • d. ZCS must be restarted to changes to take effect. Type
zmcontrol restart

Please refer below steps for zimbra-chat package installation on Redhat and Ubuntu platforms:

Redhat

Install/Upgrade zimbra-chat on mailstore node for FOSS and NETWORK

  • As root, Type below command.
yum clean metadata 
yum check-update 
yum install zimbra-chat 
  • Switch to user zimbra
su – zimbra
  • Zimbra mailbox service must be restarted to changes to take effect. Type below command:
zmmailboxdctl restart

Ubuntu

Install/Upgrade zimbra-chat on mailstore node for FOSS and NETWORK

  • As root, Type below command.
apt-get update
apt-get install zimbra-chat 
  • Switch to user zimbra
su – zimbra
  • Zimbra mailbox service must be restarted to changes to take effect. Type
zmmailboxdctl restart
Note: For users who have the web-client open and are running the FOSS edition, the refresh notice might state that you have changed to the NETWORK Edition; however, your feature set will remain FOSS only.
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