CVE-2024-11345 in Lexmark
Summary
by MITRE • 02/13/2025
A heap-based memory vulnerability has been identified in the Postscript interpreter in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code.
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Analysis
by VulDB Data Team • 02/13/2025
The heap-based memory vulnerability identified in CVE-2024-11345 represents a critical security flaw within the Postscript interpreter component of multiple Lexmark printing devices. This vulnerability resides in the memory management subsystem that processes Postscript commands, which are commonly used for document rendering and print job execution in enterprise printing environments. The affected devices typically include a wide range of Lexmark multifunction printers and laser printers that utilize Postscript as their primary document processing language. These devices are frequently deployed in corporate networks where they serve as critical infrastructure components for document management and printing services.
The technical flaw manifests as a heap-based buffer overflow condition that occurs when the Postscript interpreter processes malformed or specially crafted input data. When an attacker submits malicious Postscript code or document content that exceeds the allocated heap memory boundaries, the interpreter fails to properly validate input parameters and handle memory allocation requests. This improper memory handling creates a situation where adjacent memory blocks can be overwritten, leading to potential code execution privileges. The vulnerability specifically affects the heap memory management functions within the Postscript processing engine, where insufficient bounds checking allows attackers to manipulate memory layout and potentially redirect program execution flow.
The operational impact of this vulnerability extends beyond simple code execution capabilities, as it provides attackers with a pathway to compromise entire networked printing environments. Once successfully exploited, the vulnerability could enable attackers to gain unauthorized access to print servers, potentially allowing them to intercept sensitive documents, modify print jobs, or establish persistent backdoors within corporate networks. The attack surface is particularly concerning given that many Lexmark devices are connected directly to corporate networks and may not be adequately protected by traditional network segmentation measures. This vulnerability can be exploited remotely through network-based attacks, making it particularly dangerous in environments where printing devices are accessible from external networks or where insufficient network controls exist between the print infrastructure and core business systems.
Organizations should implement immediate mitigations including firmware updates from Lexmark to address the heap memory handling issues within the Postscript interpreter. Network segmentation strategies should be employed to isolate printing infrastructure from critical business networks, while implementing strict access controls and monitoring for suspicious print job activities. Security teams should also deploy network intrusion detection systems capable of identifying malicious Postscript content and monitor for anomalous behavior patterns that may indicate exploitation attempts. The vulnerability aligns with CWE-122 Heap-based Buffer Overflow and can be categorized under ATT&CK technique T1059.007 for Command and Scripting Interpreter, specifically targeting Postscript execution environments. Additionally, this vulnerability represents a significant concern for compliance frameworks such as SOC 2 and ISO 27001, as it creates potential data exposure risks and weakens overall network security postures.