CVE-2019-1345 in Windows
Summary
by MITRE
An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka 'Windows Kernel Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-1334.
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Analysis
by VulDB Data Team • 10/15/2025
The vulnerability identified as CVE-2019-1345 represents a critical information disclosure flaw within the Windows kernel's memory management subsystem. This vulnerability specifically manifests when the kernel fails to properly handle objects stored in memory, creating potential pathways for unauthorized access to sensitive system information. The flaw exists at the core operating system level, making it particularly dangerous as it can be exploited to gain insights into system internals that should remain protected from user-space applications and potentially malicious actors.
From a technical perspective, the vulnerability stems from improper memory object handling within the Windows kernel, which falls under the broader category of memory corruption vulnerabilities. The kernel's failure to correctly manage memory objects creates opportunities for information leakage that can reveal critical system details including memory addresses, kernel structures, and potentially sensitive data that should remain isolated within the protected kernel space. This type of vulnerability is classified as a CWE-200 (Information Exposure) and can be categorized under ATT&CK technique T1059.001 (Command and Scripting Interpreter) when exploited for further reconnaissance activities.
The operational impact of CVE-2019-1345 extends beyond simple information disclosure, as the leaked memory information can serve as a foundation for more sophisticated attacks. Attackers can leverage the disclosed information to bypass security mechanisms, perform kernel-level attacks, or craft more effective exploitation techniques against other vulnerabilities present in the system. The vulnerability affects multiple Windows versions including Windows 10, Windows Server 2016, and Windows Server 2019, making it particularly concerning for enterprise environments where these operating systems are prevalent. The information disclosure can potentially reveal kernel memory layouts, which significantly reduces the effectiveness of modern exploit mitigations such as address space layout randomization and kernel address space layout randomization.
Mitigation strategies for this vulnerability primarily focus on applying Microsoft's security patches and updates as soon as they become available. System administrators should prioritize patch management processes to ensure all affected Windows systems receive the necessary updates that address the kernel memory handling flaw. Additionally, implementing network segmentation and access controls can help limit the potential impact of exploitation attempts. Organizations should also consider deploying intrusion detection systems that can monitor for unusual memory access patterns or information disclosure attempts. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates how seemingly minor kernel memory management issues can create significant security risks that affect system integrity and confidentiality. Regular security assessments and vulnerability scanning should include checks for this specific vulnerability to ensure comprehensive protection against potential exploitation attempts.