CVE-2009-1832 in Firefox
Summary
by MITRE
Mozilla Firefox before 3.0.11, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.17 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors involving "double frame construction."
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Analysis
by VulDB Data Team • 09/06/2019
This vulnerability affects Mozilla Firefox versions prior to 3.0.11, Thunderbird versions prior to 2.0.0.22, and SeaMonkey versions prior to 1.1.17, representing a critical memory corruption issue that can lead to remote code execution or denial of service conditions. The flaw specifically involves "double frame construction" vectors that exploit how these applications handle certain web content structures. The vulnerability stems from improper memory management during the processing of web frames, creating conditions where maliciously crafted content can trigger memory corruption patterns that result in application instability or arbitrary code execution. This type of vulnerability falls under CWE-121, which describes heap-based buffer overflow conditions, and represents a classic example of how improper memory handling can create exploitable conditions in web browsers. The double frame construction mechanism allows attackers to manipulate the browser's frame creation process in a way that leads to memory corruption, where the application attempts to allocate or access memory in an invalid manner during frame construction operations.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it can potentially enable remote code execution on vulnerable systems. When exploited, the memory corruption can cause the browser to crash or behave unpredictably, but more concerning is the potential for attackers to leverage this weakness to execute arbitrary code within the context of the user's session. This represents a significant security risk for users who browse untrusted websites, as the vulnerability can be triggered through malicious web content without requiring user interaction beyond visiting a compromised site. The attack surface is broad given that these applications are widely deployed across different operating systems and user bases, making the potential impact substantial. The vulnerability aligns with ATT&CK technique T1059 which involves executing malicious code through various attack vectors including browser-based exploits, and demonstrates how memory corruption vulnerabilities can be weaponized for remote exploitation. The specific nature of the double frame construction attack requires precise timing and memory manipulation to achieve successful exploitation, but the underlying flaw in memory management creates a consistent pathway for attackers to compromise affected systems.
Mitigation strategies for this vulnerability include immediate application updates to the patched versions of Firefox, Thunderbird, and SeaMonkey, as these releases contain fixes for the memory corruption issues in frame construction handling. System administrators should prioritize deployment of these security updates across all affected systems, particularly in enterprise environments where browser-based attacks are a common threat vector. Additionally, implementing network-based security controls such as web application firewalls and content filtering solutions can provide additional layers of protection by blocking known malicious content patterns that might trigger this vulnerability. Organizations should also consider deploying browser hardening measures including disabling unnecessary browser features, implementing strict content security policies, and using sandboxing technologies to limit the potential impact of successful exploitation attempts. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates how seemingly minor memory handling flaws can create significant security risks in widely used applications. Regular security assessments and vulnerability scanning should be conducted to identify and remediate similar issues before they can be exploited by malicious actors, emphasizing the need for continuous security monitoring and proactive patch management processes.