CVE-2024-34631 in Notes
Summary
by MITRE • 08/07/2024
Out-of-bounds read in applying new binary in Samsung Notes prior to version 4.4.21.62 allows local attackers to potentially read memory.
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Analysis
by VulDB Data Team • 08/10/2024
Samsung Notes applications prior to version 4.4.21.62 contain a critical out-of-bounds read vulnerability that arises during the processing of new binary data within the application's memory management system. This flaw occurs when the application attempts to handle binary content that exceeds expected boundaries, creating a condition where the program reads memory locations beyond the allocated buffer limits. The vulnerability stems from insufficient input validation and boundary checking mechanisms within the binary data processing pipeline, allowing attackers to manipulate memory access patterns through crafted binary inputs.
The technical implementation of this vulnerability demonstrates a classic buffer over-read scenario where the application's memory management routines fail to properly validate the size and content of incoming binary data. When Samsung Notes processes new binary content, it allocates memory buffers based on assumptions about data size that may not hold true for maliciously crafted inputs. This weakness enables attackers to trigger memory access violations that can result in information disclosure or potentially more severe exploitation vectors. The vulnerability falls under the CWE-125 out-of-bounds read category, which represents one of the most common and dangerous memory safety issues in software applications.
From an operational perspective, this vulnerability presents significant risks to Samsung Notes users who may inadvertently encounter malicious binary content or be targeted through social engineering attacks that deliver crafted files. Local attackers can exploit this weakness to potentially read sensitive memory regions containing authentication tokens, user data, or application configuration information. The impact extends beyond simple information disclosure as the memory read operations may expose internal application structures that could aid in developing more sophisticated attack vectors. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as attackers may leverage memory read capabilities to gather intelligence about the target system.
The exploitation of this vulnerability requires local system access and involves crafting specific binary content that triggers the memory read condition. Attackers typically need to understand the application's binary processing logic and identify memory regions that contain valuable information. The vulnerability's impact is particularly concerning in enterprise environments where Samsung Notes may be used for document sharing and collaboration, as it could enable attackers to access sensitive business information. Security professionals should note that this vulnerability represents a critical risk for mobile device management systems and enterprise mobility solutions that rely on Samsung Notes for document handling.
Organizations should immediately implement security patches for Samsung Notes versions prior to 4.4.21.62 to address this vulnerability. System administrators should conduct thorough security assessments of mobile device management policies and ensure proper application vetting processes are in place. The mitigation strategy should include regular security updates, application whitelisting where appropriate, and monitoring for suspicious binary content processing activities. Additionally, security teams should implement memory protection mechanisms such as address space layout randomization and stack canaries to reduce the potential impact of similar vulnerabilities. The vulnerability serves as a reminder of the critical importance of robust input validation and memory safety practices in mobile application development, particularly for applications handling user-generated content and binary data processing.