CVE-2012-0461 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 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 • 12/24/2024
The vulnerability identified as CVE-2012-0461 represents a critical security flaw affecting multiple Mozilla products including Firefox, Thunderbird, and SeaMonkey across various version ranges. This vulnerability resides within the browser engine component of these applications, specifically impacting versions prior to the mentioned patches. The affected software versions include Firefox 3.6.x before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird versions before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8. These products are widely used across enterprise and individual environments, making the potential impact of this vulnerability significant.
The technical nature of this vulnerability manifests through unspecified attack vectors that lead to memory corruption issues within the browser engine. Memory corruption vulnerabilities typically occur when applications fail to properly manage memory allocation and deallocation, allowing attackers to manipulate memory contents in ways that can trigger application crashes or potentially execute malicious code. The unspecified nature of the exact attack vectors suggests that multiple different methods could be exploited, making the vulnerability particularly dangerous as defenders cannot easily predict or defend against all possible exploitation techniques. According to CWE classification, this vulnerability would likely fall under CWE-119 Improper Access to Memory, which encompasses various memory-related flaws including buffer overflows, use-after-free errors, and other memory corruption conditions that can lead to arbitrary code execution.
The operational impact of CVE-2012-0461 extends beyond simple denial of service scenarios to potentially enable remote code execution, representing a severe threat to affected systems. When applications crash due to memory corruption, they can be exploited to cause persistent denial of service conditions that disrupt user productivity and business operations. However, the more concerning aspect is the potential for arbitrary code execution, which would allow attackers to gain control over affected systems, install malware, steal sensitive data, or establish persistent backdoors. This vulnerability affects not just individual users but also enterprise environments where these applications are deployed, potentially creating widespread compromise opportunities. The vulnerability's presence in ESR (Extended Support Release) versions indicates that organizations relying on long-term support versions are also at risk, as these versions typically receive security updates for extended periods but may contain unpatched vulnerabilities.
Mitigation strategies for this vulnerability require immediate patching of all affected software versions to prevent exploitation. Organizations should prioritize updating Firefox, Thunderbird, and SeaMonkey installations to their latest secure versions, particularly focusing on the ESR releases which may have extended support cycles but still contain unpatched vulnerabilities. Network administrators should implement monitoring solutions to detect potential exploitation attempts and establish incident response procedures for handling security breaches. The vulnerability's characteristics align with ATT&CK technique T1059 Command and Scripting Interpreter, as exploitation could involve command execution through compromised applications, and T1070 Indicator Removal on Host, as attackers might attempt to cover their tracks after successful exploitation. Additionally, defense-in-depth strategies should include implementing web application firewalls, browser hardening measures, and regular security assessments to identify and remediate similar vulnerabilities in other components of the attack surface.