CVE-2023-21529

Question

CVE-2023-21529

Pham Tien Dung 0

Currently we are using exchange 2016 cu20 system, but there is a warning CVE-2023-21529 issued on February 14, according to the recommendation from microsoft we have upgraded exchange 2016 cu20 so exchange 2016 cu23 and install patch KB5023038. i have done run on root AD Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataOFF /PrepareSchema Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataOFF /PrepareAD Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataOFF /PrepareAllDomains However, when installing exchange 2016 cu23 on the exchange server, it reported an error Microsoft Exchange has stopped working

Answer 1

Hi @Pham Tien Dung ,

What is the error report? Are you having problems updating from CU20 to CU23? You need to update to Cumulative Update 23 for Exchange Server 2016 (KB5011155) first: https://www.microsoft.com/en-us/download/details.aspx?id=104132

Then install the latest SU (SU update is cumulative and will include previous patches): https://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2019-2016-and-2013-march-14-2023-kb5024296-e13b0369-2102-4c95-bee2-456514630727

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Answer 2

Pham Tien Dung 0

Hi @Jame Xu-MSFT

I installed ExchangeServer2016-x64-CU23.ISO update to Cumulative Update 23 for Exchange Server 2016 but got error

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Jame Xu-MSFT 3,641 Reputation points Microsoft Vendor

2023-03-17T07:58:32.2166667+00:00

Could you try restarting the exchange server or restarting Exchange-related services?

Michael_89012 0

I'm receiving the same error for 64bit CU23 install on a 2012 server. I've restarted the server and verified the system has the latest updates.

copy/past from error window.

Problem signature:
  Problem Event Name:	CLR20r3
  Problem Signature 01:	SetupUI.exe
  Problem Signature 02:	15.1.2507.6
  Problem Signature 03:	623f709f
  Problem Signature 04:	mscorlib
  Problem Signature 05:	4.8.4614.0
  Problem Signature 06:	63995ad2
  Problem Signature 07:	1694
  Problem Signature 08:	f
  Problem Signature 09:	System.IO.IOException
  OS Version:	6.3.9600.2.0.0.400.8
  Locale ID:	1033
  Additional Information 1:	4c50
  Additional Information 2:	4c506fd07aaff64155fa441f31c3a73e
  Additional Information 3:	dd3f
  Additional Information 4:	dd3f8284a23d5e8a5764ed34ef647ff8

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CVE-2023-21529

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