Zimbra not affected by log4j (CVE-2021-44228)
After intensive review and testing, Zimbra Development determined that the 0-day exploit vulnerability for log4j (CVE-2021-44228) does not affect the current Supported Zimbra versions (9.0.0 & 8.8.15). Zimbra Collaboration Server currently uses log4j1 version 1.2.16 which doesn't contain the lookup expression feature that is found within versions 2.0 to 2.17, which is the cause of the vulnerability. Also, Redhat (CVE-2021-4104) vulnerability does not affect the Zimbra Collaboration Server version (8.8.15 & 9.0.0). For this vulnerability to affect the server, it needs JMSAppender, which the ZCS Server does not use, and the ability to append configuration files.

ZCO and Office/Outlook 2021

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adamdudzik
Posts: 4
Joined: Tue Feb 02, 2021 9:40 am

ZCO and Office/Outlook 2021

Postby adamdudzik » Thu Dec 02, 2021 7:30 am

Hi!

Tell me something - is ZCO (9.0.0.1908 if this is important) is ready for Outlook 2021? In official documentation support ended on "Outlook 2019: 32-bit and 64-bit editions of Microsoft Office, including Click to run". (https://zimbra.github.io/zm-windows-com ... Guide.html)


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L. Mark Stone
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Posts: 2309
Joined: Wed Oct 09, 2013 11:35 am
Location: Portland, Maine, US
ZCS/ZD Version: 8.8.15 Network Edition
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Re: ZCO and Office/Outlook 2021

Postby L. Mark Stone » Thu Dec 02, 2021 2:48 pm

As a Network Edition customer, this is one of those questions you are totally justified in opening a Support Case for.
___________________________________
L. Mark Stone
Mission Critical Email - Zimbra VAR/BSP/Training Partner https://www.missioncriticalemail.com/
Zeta Alliance http://www.zetalliance.org/

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