CVE-2012-3982 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
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Analysis
by VulDB Data Team • 10/22/2024
The vulnerability identified as CVE-2012-3982 represents a critical security flaw affecting multiple Mozilla products including Firefox, Thunderbird, and SeaMonkey across their respective versions. This vulnerability resides within the browser engine component that processes web content and handles various data formats, making it a prime target for exploitation by malicious actors seeking to compromise user systems. The affected versions spanned across Firefox 15.0 and earlier, Firefox ESR 10.x versions prior to 10.0.8, Thunderbird 15.0 and earlier, Thunderbird ESR 10.x versions before 10.0.8, and SeaMonkey 2.12 and earlier releases. These products form a significant portion of the web browsing and email client landscape, amplifying the potential impact of this vulnerability.
The technical nature of this vulnerability manifests as unspecified flaws within the browser engine that can lead to memory corruption issues and subsequent application crashes. According to CWE classification, this vulnerability falls under CWE-119 Improper Access to Memory and CWE-125 Out-of-bounds Read categories, indicating that the underlying flaw involves improper handling of memory operations that can result in buffer overflows or other memory access violations. The unspecified nature of the exact attack vectors suggests that multiple different code paths within the browser engine could potentially trigger these memory corruption conditions, making the vulnerability particularly dangerous as it may be exploitable through various means. The vulnerability's potential for arbitrary code execution places it within the ATT&CK framework under T1059 Command and Scripting Interpreter and T1203 Exploitation for Client Execution, representing a significant threat to system integrity and user security.
The operational impact of CVE-2012-3982 extends beyond simple denial of service scenarios to potentially enable complete system compromise. When memory corruption occurs in browser engines, attackers can leverage these conditions to execute malicious code with the privileges of the affected application, which typically run with user-level permissions. This could result in unauthorized access to sensitive data, system file manipulation, or even privilege escalation depending on the system configuration. The vulnerability's ability to cause application crashes also creates opportunities for persistent denial of service attacks that could disrupt user productivity and potentially serve as a stepping stone for more sophisticated attacks. Organizations relying on these affected Mozilla products face significant risk of exploitation, particularly in environments where users may encounter malicious web content or email attachments.
Mitigation strategies for CVE-2012-3982 primarily focus on immediate software updates and patches provided by Mozilla. System administrators should prioritize updating all affected products to their latest versions, specifically Firefox 16.0, Thunderbird 16.0, and SeaMonkey 2.13, along with their respective ESR versions. Additionally, implementing network-level protections such as web application firewalls and content filtering solutions can help reduce exposure to potentially malicious content. Browser hardening techniques including disabling unnecessary plugins, implementing strict security policies, and using sandboxing mechanisms provide additional layers of defense. Organizations should also consider deploying intrusion detection systems to monitor for exploitation attempts and maintain comprehensive incident response procedures to address potential compromise scenarios. Regular security assessments and vulnerability scanning should be conducted to ensure all systems remain protected against similar vulnerabilities in the future.