A memory corruption vulnerability exists in the Windows Server DHCP service when an attacker sends specially crafted packets to a DHCP failover server. An attacker who successfully exploited the vulnerability could cause the DHCP service to become nonresponsive. To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server. However, the DHCP server must be set to failover mode for the attack to succeed. The security update addresses the vulnerability by correcting how DHCP failover servers handle network packets.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2019-08 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4511553)2019-08 Cumulative Update for Microsoft Windows Server 2012 R2 (KB4512489)2019-08 Security Only Quality Update for Windows Embedded 8 Standard for x86-based Systems (KB4512482)2019-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4512489)2019-08 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4512508)2019-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4512489)2019-08 Cumulative Update for Microsoft Windows Server 2012 (KB4512482)2019-08 Security Only Quality Update for Windows Embedded 8 Standard for x64-based Systems (KB4512482)2019-08 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4512517) | Aug 13, 2019 | Aug 13, 2019 |
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