CVE-2018-0956HighCVSS 7.5

HTTP/2 Server Denial of Service Vulnerability

Published
April 10, 2018
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2018-0956 →

📋 Description

A denial of service vulnerability exists in the HTTP/2 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive. To exploit this vulnerability, an unauthenticated attacker could send a specially crafted HTTP packet to a target system, causing the affected system to become nonresponsive. The update addresses the vulnerability by modifying how the Windows HTTP protocol stack handles HTTP/2 requests. Note that the denial of service vulnerability would not allow an attacker to execute code or to elevate user rights.

🎯 Affected products13

  • Windows 10 Version 1511 for 32-bit Systems
  • Windows 10 Version 1511 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server, version 1709 (Server Core Installation)

✅ Remediation

KB4093107 (Security Update) KB4093111 (Security Update) KB4093109 (Security Update) KB4093119 (Security Update) KB4093112 (Security Update)

🔗 References (6)