CVE-2024-7534 in Chrome
Summary
by MITRE • 08/07/2024
Heap buffer overflow in Layout in Google Chrome prior to 127.0.6533.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 03/15/2025
The heap buffer overflow vulnerability identified as CVE-2024-7534 represents a critical security flaw within Google Chrome's layout engine that existed prior to version 127.0.6533.99. This vulnerability falls under the category of memory corruption issues that can potentially be exploited by remote attackers through maliciously crafted web content. The flaw specifically resides within the layout component of the browser's rendering engine, which processes and structures web page elements for display. Such vulnerabilities are particularly dangerous because they can lead to arbitrary code execution when exploited, making them high severity threats in the cybersecurity landscape.
The technical nature of this heap buffer overflow stems from improper bounds checking within the layout processing code. When Chrome encounters malformed HTML content that triggers the vulnerable code path, the application fails to properly validate buffer boundaries during memory allocation and data copying operations. This allows an attacker to write data beyond the allocated memory space, potentially overwriting adjacent memory locations and corrupting heap metadata. The vulnerability's exploitation requires a remote attacker to craft a specific HTML page that, when loaded in the vulnerable browser, triggers the flawed memory handling routine. This type of vulnerability is classified as a CWE-121 heap-based buffer overflow, which directly maps to the attack patterns documented in the MITRE ATT&CK framework under technique T1059 for command and control through browser-based attacks.
The operational impact of this vulnerability extends beyond simple memory corruption, as it provides attackers with a potential pathway for complete system compromise. When successfully exploited, the heap corruption can lead to denial of service conditions, arbitrary code execution, or information disclosure. Attackers can leverage this vulnerability to execute malicious payloads, escalate privileges, or establish persistent access to affected systems. The remote exploitation capability means that victims need only visit a malicious website or receive a specially crafted email with embedded web content to be compromised. This makes the vulnerability particularly dangerous in phishing campaigns and drive-by download attacks where user interaction is minimal.
Mitigation strategies for CVE-2024-7534 primarily focus on immediate patching and browser updates to ensure the vulnerable code paths are eliminated. Organizations should prioritize updating all affected Chrome installations to version 127.0.6533.99 or later, which contains the necessary security patches. Additional protective measures include implementing web application firewalls, content security policies, and browser hardening configurations that limit the attack surface. Network monitoring should be enhanced to detect suspicious web traffic patterns that may indicate exploitation attempts. Security teams should also consider deploying sandboxing mechanisms and privilege separation techniques to limit the potential damage from successful exploitation attempts. The vulnerability demonstrates the importance of continuous security monitoring and proactive patch management in maintaining robust cybersecurity defenses against sophisticated remote exploitation techniques.