CVE-2008-2332 in Mac OS X
Summary
by MITRE
ImageIO in Apple Mac OS X 10.4.11 and 10.5 through 10.5.4 allows context-dependent attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a crafted TIFF image.
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Analysis
by VulDB Data Team • 08/17/2019
The vulnerability described in CVE-2008-2332 represents a critical security flaw within Apple Mac OS X operating systems, specifically affecting versions 10.4.11 and 10.5 through 10.5.4. This issue resides within the ImageIO framework, which serves as the core image processing component responsible for handling various image formats including TIFF files. The vulnerability manifests when the system processes specially crafted TIFF images, leading to unpredictable behavior that can result in either system instability or arbitrary code execution. The flaw demonstrates characteristics of a buffer overflow condition that occurs during the parsing of malformed image data, making it particularly dangerous as it can be triggered through routine image processing operations.
The technical implementation of this vulnerability stems from inadequate input validation within the ImageIO framework's TIFF parser. When a maliciously constructed TIFF image is processed, the parser fails to properly validate the image structure and metadata fields, leading to memory corruption during the decompression and rendering phases. This memory corruption can occur in multiple locations within the application memory space, potentially causing stack or heap corruption that results in application crashes or more severe system instability. The vulnerability's context-dependent nature means that exploitation requires specific conditions where the vulnerable system processes the crafted image, typically through user interaction with image files or automatic image rendering in applications that utilize ImageIO.
The operational impact of this vulnerability extends beyond simple denial of service scenarios to encompass potential arbitrary code execution capabilities that could allow attackers to gain unauthorized system access. When exploited successfully, the vulnerability can cause applications utilizing ImageIO to crash or behave unpredictably, potentially leading to complete system instability. The memory corruption aspects of this vulnerability align with CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. Additionally, this vulnerability demonstrates characteristics of a privilege escalation vector, as the arbitrary code execution could potentially be leveraged to execute malicious payloads with elevated privileges depending on the target application's execution context.
From an attacker's perspective, this vulnerability represents a significant entry point for malicious actors seeking to compromise Mac OS X systems, particularly in environments where users frequently interact with image files from untrusted sources. The exploitation mechanism is relatively straightforward as it only requires the victim to process a specially crafted TIFF image, which could occur through email attachments, web browsing, or file sharing scenarios. Security professionals should note that this vulnerability aligns with ATT&CK technique T1059, which covers command and script injection, as successful exploitation could lead to command execution capabilities. Organizations should implement comprehensive patch management procedures to address this vulnerability, as Apple released security updates specifically targeting this flaw in subsequent system releases. The vulnerability also highlights the importance of input validation in image processing libraries and serves as a reminder of the critical security considerations required for multimedia handling components in operating systems.
Mitigation strategies for this vulnerability should include immediate deployment of Apple's security patches and updates, along with implementing network-based filtering to prevent the transmission of potentially malicious image files. System administrators should consider implementing additional security measures such as sandboxing applications that process image files and monitoring for unusual memory usage patterns that might indicate exploitation attempts. Organizations should also conduct security awareness training to educate users about the risks of processing untrusted image files and implement proper file validation procedures before image processing operations. The vulnerability underscores the necessity of maintaining up-to-date security patches and the importance of robust input validation mechanisms in multimedia processing frameworks to prevent similar issues from occurring in the future.