CVE-2012-4865 in Themida
Summary
by MITRE
Buffer overflow in Oreans Themida 2.1.8.0 allows remote attackers to execute arbitrary code via a crafted .TMD file.
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Analysis
by VulDB Data Team • 07/14/2025
The vulnerability identified as CVE-2012-4865 represents a critical buffer overflow flaw in Oreans Themida version 2.1.8.0, a software protection tool designed to prevent reverse engineering and tampering of applications. This vulnerability specifically affects the processing of .TMD files, which are used by Themida for configuration and protection settings. The flaw exists in the manner in which the software parses these files, creating an opportunity for attackers to manipulate the application's memory structure through carefully crafted input data.
The technical implementation of this vulnerability stems from inadequate bounds checking within the file parsing routine. When Themida encounters a maliciously constructed .TMD file, the application fails to properly validate the length of data segments before copying them into fixed-size buffers. This classic buffer overflow condition allows an attacker to overwrite adjacent memory locations, potentially corrupting program execution flow. The vulnerability is particularly concerning because it operates at the file processing level, meaning that simply opening or loading a malicious file can trigger the exploit without requiring any interactive user actions beyond the initial file access.
From an operational perspective, this vulnerability presents a significant risk to organizations relying on Themida for application protection. Attackers can leverage this flaw to execute arbitrary code on systems where Themida is installed, potentially gaining full control over the affected machine. The remote exploitation capability means that adversaries could deliver malicious .TMD files through various attack vectors including email attachments, compromised websites, or file sharing platforms. The impact extends beyond individual system compromise as attackers could use this vulnerability to establish persistent access, deploy additional malware, or conduct further reconnaissance activities within the network.
The vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and represents a clear violation of secure coding practices that emphasize the importance of input validation and memory management. From an attack framework perspective, this vulnerability would map to multiple ATT&CK techniques including initial access through malicious file delivery and execution through code injection methods. Organizations should consider implementing network segmentation and file scanning mechanisms to prevent the execution of untrusted .TMD files. The recommended mitigation strategy includes immediate patching of the Themida software to version 2.1.9.0 or later, which contains the necessary memory validation fixes. Additionally, security teams should conduct thorough vulnerability assessments of systems running affected versions and implement monitoring for suspicious file access patterns related to .TMD file processing.