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Microsoft December 2023 Patch Tuesday fixes 34 flaws, 1 zero-day

Today is Microsoft's December 2023 Patch Tuesday, which includes security updates for a total of 34 flaws and one previously disclosed, unpatched vulnerability in AMD CPUs.
While eight remote code execution bugs were fixed, Microsoft only rated three as critical.
In total, there were four critical vulnerabilities, with one in Power Platform, two in Internet Connection Sharing, and one in Windows MSHTML Platform.
The total count of 34 flaws does not include 8 Microsoft Edge flaws fixed on December 7th. To learn more about the non-security updates released today, you can review our dedicated articles on the new Windows 11 KB5033375 cumulative update and Windows 10 KB5033372 cumulative update.
This month's Patch Tuesday fixes one AMD zero-day vulnerability disclosed in August that previously remained unpatched.
The 'CVE-2023-20588 - AMD: CVE-2023-20588 AMD Speculative Leaks' vulnerability is a division-by-zero bug in specific AMD processors that could potentially return sensitive data.
The flaw was disclosed in August 2023, with AMD not providing any fixes other than recommending the following mitigation.
As part of today's December Patch Tuesday updates, Microsoft has released a security update that resolves this bug in impacted AMD processors.
Atlassian released security updates for four critical remote code execution flaws in Confluence, Jira, and Bitbucket.
Cisco released security updates for a Cisco ASA and Firepower flaw allowing IP address spoofing.
Google released the Android December 2023 security updates with a fix for a critical zero-day.
SAP has released its December 2023 Patch Day updates.
Sierra Wireless released security advisors for 21 flaws impacting Sierra OT/IoT routers.
SLAM side-channel attack steals sensitive data from upcoming CPUs from Intel, AMD, and Arm CPUs.
Below is the complete list of resolved vulnerabilities in the December 2023 Patch Tuesday updates.
To access the full description of each vulnerability and the systems it affects, you can view the full report here.
Windows 10 KB5033372 update released with Copilot for everyone, 20 changes.
Windows 10 KB5032189 update released with 11 improvements.
Windows 11 KB5033375 update released with upgraded Copilot AI-assistant.
Windows 11 KB5032190 update enables Moment 4 features for everyone.


This Cyber News was published on www.bleepingcomputer.com. Publication date: Tue, 12 Dec 2023 19:05:13 +0000


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