Description

In display, there is a possible escalation of privilege due to an integer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11296678; Issue ID: MSV-9167.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.7",
  "pubDate": "2026-10-05T02:16:52.150Z",
  "pubdate": "2026-10-05T02:16:52.150Z",
  "executiveSummary": "An integer overflow vulnerability exists within the display component, potentially resulting in a local escalation of privilege.\nThis security flaw is identified by Issue ID: MSV-9167 and Patch ID: ALPS11296678.\nThe vulnerability allows an attacker who has already secured System-level privileges to perform further unauthorized operations or exploit the system state through memory corruption.\nExploitation does not require user interaction, making it a highly reliable primitive once the initial high-privilege foothold is established.\nThe primary risk involves the compromise of system integrity and the potential for persistent unauthorized access if leveraged to manipulate display buffer or rendering logic.\nBecause the vulnerability triggers during display processing, it poses a significant threat to the stability and security boundary of the underlying operating system environment.",
  "technicalDetails": "The vulnerability is fundamentally rooted in an integer overflow within the display subsystem's memory management or buffer calculation logic. When processing specific inputs or parameters related to display outputs, the component fails to correctly validate the bounds of numeric values before performing arithmetic operations.\nAn integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside the range that can be represented with a given number of bits. In this specific display component, the overflow likely results in a wrapped-around, smaller-than-intended value being allocated for buffer size or memory offset calculations.\nThe attack flow initiates when a malicious actor, already operating with System privileges, provides a crafted input to the display subsystem. Because the component does not verify the integrity of the integer input, the arithmetic overflow triggers, leading to a heap-based or stack-based buffer overflow condition.\nSince the attacker already possesses System-level privileges, they can leverage this memory corruption to overwrite critical control structures, function pointers, or return addresses within the kernel context of the display driver. By precisely controlling the overflow, the attacker can redirect the execution flow to arbitrary shellcode or perform a Return-Oriented Programming (ROP) attack to bypass existing security features such as Data Execution Prevention (DEP) or Kernel Address Space Layout Randomization (KASLR).\nPost-exploitation, the impact is severe. The attacker can escalate their control further by manipulating system memory, intercepting display data, or injecting malicious code into other high-privilege processes. Since the vulnerability resides within the display component, the exploitation process is entirely automated and executes without user intervention, ensuring stealthy and reliable execution.\nThe lack of adequate range checks during the integer arithmetic operation is the definitive root cause of this memory safety vulnerability. The failure to treat untrusted inputs as potentially malicious, even within a System-context, facilitates the bypass of memory isolation boundaries."
}