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AUSCERT Security Bulletin
ASB-2018.0297
Microsoft Developer Tools updates for December 2018
12 December 2018
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AusCERT Security Bulletin Summary
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Product: .NET Core
Azure App Service
ChakraCore
.NET Framework
Visual Studio
PowerShell Core
Team Foundation Server
Operating System: Windows
Linux variants
Mac OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Increased Privileges -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-8629 CVE-2018-8624 CVE-2018-8618
CVE-2018-8617 CVE-2018-8599 CVE-2018-8583
CVE-2018-8540 CVE-2018-8517
Member content until: Friday, January 11 2019
OVERVIEW
Microsoft has released its monthly security patch update for the month of December 2018.
This update resolves 8 vulnerabilities across the following products: [1]
ChakraCore
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6.2
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2
Microsoft .NET Framework 4.7.1/4.7.2
Microsoft .NET Framework 4.7.2
Microsoft .NET Framework 4.7/4.7.1/4.7.2
Microsoft Visual Studio 2015 Update 3
Microsoft Visual Studio 2017
Microsoft Visual Studio 2017 version 15.9
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2018-8517 Denial of Service Important
CVE-2018-8540 Remote Code Execution Critical
CVE-2018-8583 Remote Code Execution Critical
CVE-2018-8599 Elevation of Privilege Important
CVE-2018-8617 Remote Code Execution Critical
CVE-2018-8618 Remote Code Execution Critical
CVE-2018-8624 Remote Code Execution Critical
CVE-2018-8629 Remote Code Execution Critical
MITIGATION
Microsoft recommends updating the software with the version made available on the Microsoft Update Catalogue for the following Knowledge Base articles. [1].
KB4470637, KB4470493, KB4470492, KB4470491, KB4470630
KB4470639, KB4470638, KB4471323, KB4471321, KB4471327
KB4471324, KB4471329, KB4470640, KB4470641, KB4470500
KB4470502, KB4470622, KB4470623, KB4470602, KB4470629
KB4470600, KB4470601, KB4470499, KB4470498, KB4469516
REFERENCES
[1] Security Update Guide
https://portal.msrc.microsoft.com/en-us/security-guidance
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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