CVE-2025-20648 in MT2718
Summary
by MITRE • 03/03/2025
In apu, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09456673; Issue ID: MSV-2584.
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Analysis
by VulDB Data Team • 03/03/2025
The vulnerability identified as CVE-2025-20648 affects the apu component and represents a critical out-of-bounds read flaw that stems from inadequate input validation mechanisms. This type of vulnerability falls under the CWE-129 category of Improper Validation of Array Index, where the system fails to properly verify array bounds before accessing memory locations. The flaw exists within the apu module's memory handling routines where a missing bounds check allows unauthorized access to memory regions beyond the allocated array boundaries. Such a condition typically occurs when developers assume array indices will remain within expected parameters without implementing proper validation checks.
The operational impact of this vulnerability extends beyond simple memory access issues to potentially enable local information disclosure attacks. Attackers can exploit this weakness to read data from adjacent memory locations that may contain sensitive information such as cryptographic keys, authentication tokens, or system credentials. The vulnerability's exploitation requires no additional privileges beyond normal user access, making it particularly dangerous as it can be leveraged by malicious actors with minimal access rights. The absence of user interaction requirements means that exploitation can occur automatically, either through automated scripts or during normal system operations when the affected component processes data.
The patch ID ALPS09456673 specifically addresses this issue by implementing proper bounds checking mechanisms within the apu component's memory access routines. This fix likely involves adding validation checks before array indexing operations to ensure that all memory accesses remain within legitimate boundaries. The issue ID MSV-2584 indicates this vulnerability was tracked within Microsoft's security vulnerability management system, suggesting potential integration with broader security frameworks. The vulnerability demonstrates characteristics consistent with ATT&CK technique T1059.001 for command and scripting interpreter usage, where attackers may leverage such memory access flaws to extract sensitive information from system memory.
Organizations should prioritize immediate deployment of the ALPS09456673 patch to mitigate this vulnerability across affected systems. The remediation process should include comprehensive testing to ensure the patch does not introduce regressions in system functionality while maintaining the integrity of the apu component's intended operations. Security teams should monitor system logs for potential exploitation attempts and implement additional monitoring controls to detect unauthorized memory access patterns. The vulnerability highlights the importance of rigorous input validation and memory safety practices in system development, emphasizing that even seemingly minor oversight in bounds checking can result in significant information disclosure risks.