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AUSCERT Security Bulletin
ASB-2021.0184
Microsoft Patch Tuesday update for Microsoft Developer Tools
for September 2021
15 September 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Visual Studio
Visual Studio Code
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Provide Misleading Information -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-36952 CVE-2021-26437 CVE-2021-26434
OVERVIEW
Microsoft has released its monthly security patch update for the
month of September 2021.
This update resolves 3 vulnerabilities across the following
product(s): [1]
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)
Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)
Visual Studio Code
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2021-26434 Elevation of Privilege Important
CVE-2021-26437 Spoofing Important
CVE-2021-36952 Remote Code Execution Important
MITIGATION
Microsoft recommends updating the software to the latest available
version available on the Microsoft Update Catalog. [1].
REFERENCES
[1] [1] Microsoft Security Update Guidance
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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