Zimbra Collaboration 8.8.8 GA Release

Security Fixes


Information about security fixes, security response policy and vulnerability rating classification are listed below. See the Zimbra Security Response Policy and the Zimbra Vulnerability Rating Classification information below for details.

Bug# Summary CVE-ID CVSS
Fix Release or
Patch Version
108786 Persistent XSS - content-location [CWE-79] tba tba tba 8.8.8
108227 Multiple vulnerabilities Various 4.3 - 5.0 Low 8.8.8
108221 Certificate based authentication not working since 8.7.5 tba tba tba 8.8.8
108894 SOAP response with private key tba tba tba 8.8.8

Software changes

NOTE: If you are upgrading and/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.


What's New
Zimbra Talk - As announced at Zimbra Forum France 2018, we're proud to introduce Zimbra Talk! Experience Group and Corporate Messaging, File Sharing, and Videoconferencing right inside the Zimbra Web Client. Administrators can learn more by reading the Admin Guide.
Simplified SSO support in Zimbra Connector for Outlook™ - Previously, SSO authentication required matching the ZCO profile (email address) to the Windows logon name, with some other indirect settings. Now users can explicitly set a checkbox to "Connect using my Windows login credentials", which is clearer and supports the common situation where an email address and Windows login are different. Refer to the updated Tech Note for admin details.
New localization in Zimbra Connector for Outlook - ZCO now supports Vietnamese.

NOTE: Beta features should not be installed and are not supported on production systems. Beta modules have been provided for evaluation in lab environments only.


Fixed Issues (Bugzilla query)
108709 ZWC affected by Mailsploit due to default zimbraPrefShortEmailAddress TRUE since ZCS 7.0
108786 Bug 108786 - Persistent XSS - content-location [CWE-79]
104412 Upgrade to tinymce 4.7.9
108227 Upgrade to jQuery 3.1.1
101172 Upgrade YUIcompressor to 4.2.8; deprecate for external libs
108221 Certificate based authentication not working since 8.7.5
77129 Mails should also display time not just date
108894 SOAP API should not return a value for zimbraSSLPrivateKey
Known Issues (Bugzilla query)
108905 ZimbraNetwork Module is not visible in Admin Console after upgrade to 8.8.8
108906 Encounter ZxChatRequest error after upgrade to Turing-8.8.8
108907 Cannot upgrade directly from 7.2.7 to 8.8.8
ZeXtras Suite Changelog
Backup NG:
  • Added an additional safety check and parser for calendar metadata to ensure proper restoring even in case of bad data typing.
  • The LDAP Backup feature now also works over SSL and TLS.
Mobile NG:
  • Changed the attachment management logic to fix a bug that could cause an illegal value for the EstimatedDataSize value of an EAS transaction.
  • Fixed a bug that caused a misleading and harmless exception in the mobile debug log when sending an email with an image or ics attachment.
  • Fixed an issue that caused contact notes to be deleted after being synchronized through EAS 2.5.
  • Added a sanity check on Server IDs to ensure a badly formatted information can't block the synchronization.
  • Modified Content-Disposition Mime parsing, adding quotes for each assignment (=) to avoid illegal characters like commas. Empty assignments are also stripped.
  • Error handling code has been tweaked in order not to return an HTTP Status 200 on an error, using the appropriate status code instead (400).
  • Fixed a bug that caused attachments to be unretrievable from shared folders.
  • Fixed a typo in the output of the `getAllOperations` command.
  • Several exception types have been added to the Mailbox Move feature to better handle errors.
  • Mailbox Move commands can now be queued up.
  • New parameters available in the Mailbox Move command:
    • accounts- a list of mailboxes to move, separated by ";"
    • domain - to move an entire domain
    • input_file - path to a file containin one email address per line
  • Improved output for the doDeduplicate command when executed in dry-run mode.
Admin Console:
  • Admin Console upgraded in order to properly handle requests from different servers (Legacy or NG) to improve its usability during Rolling Upgrades.
Zimbra Chat:
  • New history management: history is now stored in IM conversations instead of in emails within the Chats folder.
  • Added message delivery and read awareness
    • 0 ticks, message undelivered
    • 1 tick, message delivered
    • 2 ticks, message read).
  • The auto-away feature has been temporarily disabled due to some ongoing tests, it will be re-enabled as soon as possible.
Zimbra Drive:
  • No changes
Zimbra Talk:
  • Initial release.

Zimbra-support es la primera y única empresa de nivel internacional en prestar soporte técnico exclusivamente para Zimbra Open Source. Cuenta con presencia en vários países de la región, y tenemos experiencia de más de 13 años con la plataforma de e-mail Zimbra, además de contar con certificación oficial y apoyo técnico del principal desarrollador.



¿Que es zimbra?

Zimbra es una plataforma de mensajería y colaboración que permite enviar y recibir correo electrónico, agendar citas y reuniones, crear contactos, organizar tareas y compartir documentos y archivos. Es de código abierto, lo que provee mayor seguridad y además no tiene costo de licenciamiento.

Permite acceder al correo y trabajar en colaboración con otros miembros de la organización y con terceros directamente desde el navegador web con total libertad y comodidad.

Sus principales características son

-Facilidad de Uso: integra una interfaz moderna y facil de utilizar.
-Flexibilidad: personalización según las necesidades de la organización
-Libertad: utilice el cliente web de Zimbra junto con otros clientes de escritorio.
-POP e IMAP: Compatibilidad nativa con estos protocolos.
-Escalabilidad: atiende perfectamente las necesidades de ampliación de las organizaciones
-Seguridad: trae incorporado un sistema de Antivirus y Antispam
-Bajo costo de mantenimiento – gestión completamente sencilla
-Zimbra para móviles: sincronización con dispositivos Android, iPhone, Windows Mobile, BlackBerry sin necesidad de un servidor adicional.




En esta sección puedes ver las ultimas novedades sobre Zimbra






    Sugerencias y problemas conocidos


    Utilizando cuentas externas en Zimbra

    Zimbra tiene una particularidad adicional y se refiere a que podemos configurar cuentas externas en nuestro propio cliente web para poder visualizarlas y utilizarlas desde una única interfaz.

    Zimbra cache is out of date or doesn't exist

    Una de las fallas mas comunes del servicio de Zimbra es cuando luego de 1 año de instalado el servicio este deja de funcionar sin previo aviso.