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The Hacker News - Cybersecurity News and Analysis: Windows Update

Microsoft Releases Windows Update (Dec 2020) to Fix 58 Security Flaws

Microsoft Releases Windows Update (Dec 2020) to Fix 58 Security Flaws

December 08, 2020Ravie Lakshmanan
Microsoft on Tuesday released fixes for 58 newly discovered security flaws spanning as many as 11 products and services as part of its final  Patch Tuesday of 2020 , effectively bringing their CVE total to 1,250 for the year. Of these 58 patches, nine are rated as Critical, 46 are rated as Important, and three are rated Moderate in severity. The December security release addresses issues in Microsoft Windows, Edge browser, ChakraCore, Microsoft Office, Exchange Server, Azure DevOps, Microsoft Dynamics, Visual Studio, Azure SDK, and Azure Sphere. Fortunately, none of these flaws this month have been reported as publicly known or being actively exploited in the wild. The fixes for December concern a number of remote code execution (RCE) flaws in Microsoft Exchange (CVE-2020-17132), SharePoint (CVE-2020-17118 and CVE-2020-17121), Excel (CVE-2020-17123), and Hyper-V virtualization software (CVE-2020-17095), as well as a patch for a security feature bypass in Kerberos (CVE-2020-16996)
Microsoft Releases Windows Security Updates For Critical Flaws

Microsoft Releases Windows Security Updates For Critical Flaws

November 11, 2020Ravie Lakshmanan
Microsoft formally released fixes for 112 newly discovered security vulnerabilities as part of its  November 2020 Patch Tuesday , including an actively exploited zero-day flaw disclosed by Google's security team last week. The rollout addresses flaws, 17 of which are rated as Critical, 93 are rated as Important, and two are rated Low in severity, once again bringing the patch count over 110 after a drop last month. The security updates encompass a range of software, including Microsoft Windows, Office and Office Services and Web Apps, Internet Explorer, Edge, ChakraCore, Exchange Server, Microsoft Dynamics, Windows Codecs Library, Azure Sphere, Windows Defender, Microsoft Teams, and Visual Studio. Chief among those fixed is  CVE-2020-17087  (CVSS score 7.8), a buffer overflow flaw in Windows Kernel Cryptography Driver ("cng.sys") that was  disclosed on October 30  by the Google Project Zero team as being used in conjunction with a Chrome zero-day to compromise Window
Microsoft Releases Patches For Critical Windows TCP/IP and Other Bugs

Microsoft Releases Patches For Critical Windows TCP/IP and Other Bugs

October 14, 2020Ravie Lakshmanan
Microsoft on Tuesday issued fixes for 87 newly discovered security vulnerabilities as part of its  October 2020 Patch Tuesday , including two critical remote code execution (RCE) flaws in Windows TCP/IP stack and Microsoft Outlook. The flaws, 11 of which are categorized as Critical, 75 are ranked Important, and one is classified Moderate in severity, affect Windows, Office and Office Services and Web Apps, Visual Studio, Azure Functions, .NET Framework, Microsoft Dynamics, Open Source Software, Exchange Server, and the Windows Codecs Library. Although none of these flaws are listed as being under active attack, six vulnerabilities are listed as publicly known at the time of release. Chief among the most critical bugs patched this month include  CVE-2020-16898  (CVSS score 9.8). According to Microsoft, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer to exploit the RCE flaw in the TCP/IP stack to execute arbitrary code
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