CVE-2010-3784 in Mac OS X
Summary
by MITRE
The PMPageFormatCreateWithDataRepresentation API in Printing in Apple Mac OS X 10.5.8 and 10.6.x before 10.6.5 does not properly handle XML data, which allows attackers to cause a denial of service (NULL pointer dereference and application crash) via unspecified API calls.
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Analysis
by VulDB Data Team • 01/26/2025
The vulnerability identified as CVE-2010-3784 resides within the PMPageFormatCreateWithDataRepresentation API function in Apple Mac OS X operating systems, specifically affecting versions 10.5.8 and 10.6.x prior to 10.6.5. This flaw represents a classic buffer handling issue that manifests through improper XML data processing within the printing subsystem. The vulnerability stems from inadequate input validation and error handling mechanisms within the API's XML parsing logic, creating a scenario where malformed or unexpected XML data can trigger unexpected behavior in the system's printing services. The flaw operates at the intersection of software security and system stability, as it can be exploited to disrupt normal system operations through carefully crafted API invocations that bypass normal validation procedures.
The technical implementation of this vulnerability demonstrates a NULL pointer dereference condition that occurs when the PMPageFormatCreateWithDataRepresentation function attempts to process XML data structures containing malformed elements or unexpected data patterns. When the API encounters such data, it fails to properly validate the XML content before attempting to dereference pointers within the parsed structure, leading to a system crash or application termination. This type of vulnerability falls under CWE-476 which specifically addresses NULL pointer dereference conditions, and represents a fundamental flaw in defensive programming practices where proper error handling and input validation are absent. The vulnerability is particularly concerning as it operates within the core printing services of the operating system, which are frequently accessed by both legitimate applications and potentially malicious code seeking to exploit system weaknesses.
The operational impact of CVE-2010-3784 extends beyond simple denial of service conditions, as it can be leveraged to create persistent system instability that affects user productivity and system reliability. When exploited, the vulnerability can cause applications that rely on printing functionality to crash unexpectedly, potentially leading to data loss or system-wide disruption. Attackers can craft malicious XML data that, when processed through the affected API, will trigger the NULL pointer dereference and subsequent system crash. This vulnerability is particularly dangerous in enterprise environments where printing services are heavily utilized and system stability is paramount. The flaw can be exploited through various attack vectors including malicious documents, compromised applications, or even through network-based attacks that manipulate XML data streams destined for printing services.
Mitigation strategies for this vulnerability should focus on immediate patch deployment as the primary solution, with Apple releasing version 10.6.5 to address the specific XML handling issues within the PMPageFormatCreateWithDataRepresentation API. System administrators should implement comprehensive monitoring of printing service stability and application crash patterns that could indicate exploitation attempts. Additional protective measures include implementing strict input validation for XML data within applications that interface with the printing subsystem, utilizing sandboxing techniques to isolate printing operations, and maintaining updated security configurations that limit access to vulnerable APIs. From an ATT&CK framework perspective, this vulnerability aligns with techniques related to privilege escalation and denial of service, and could potentially be used as a stepping stone for more sophisticated attacks. Organizations should also consider implementing network segmentation to limit the potential impact of exploitation and establish incident response procedures specifically addressing printing service disruptions. The vulnerability demonstrates the critical importance of proper XML parsing and input validation in system-level APIs, emphasizing that security considerations must be integrated throughout the entire software development lifecycle rather than treated as an afterthought.