CVE-2020-0836HighCVSS 7.5

Windows DNS Denial of Service Vulnerability

Published
September 8, 2020
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2020-0836 →

📋 Description

A denial of service vulnerability exists in Windows DNS when it fails to properly handle queries. An attacker who successfully exploited this vulnerability could cause the DNS service to become nonresponsive. To exploit the vulnerability, an authenticated attacker could send malicious DNS queries to a target, resulting in a denial of service. The update addresses the vulnerability by correcting how Windows DNS processes queries.

🎯 Affected products17

  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 1903 (Server Core installation)
  • Windows Server, version 1909 (Server Core installation)
  • Windows Server, version 2004 (Server Core installation)

✅ Remediation

KB4571756 (Security Update) KB4570333 (Security Update) KB4574727 (Security Update) KB4577015 (Security Update) KB4577064 (Monthly Rollup) KB4577070 (Security Only) KB4577051 (Monthly Rollup) KB4577053 (Security Only) KB4577038 (Monthly Rollup) KB4577048 (Security Only) KB4577066 (Monthly Rollup) KB4577071 (Security Only)

🔗 References (25)