CVE-2012-0462 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 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 • 10/21/2024
The vulnerability identified as CVE-2012-0462 represents a critical security flaw affecting multiple Mozilla products including Firefox, Thunderbird, and SeaMonkey across several version ranges. This issue resides within the browser engine component that processes web content and handles various data formats, making it a fundamental attack surface for remote threat actors. The vulnerability affects Firefox versions 4.0 through 10.0, Firefox ESR 10.x versions prior to 10.0.3, Thunderbird versions 5.0 through 10.0, Thunderbird ESR 10.x versions before 10.0.3, and SeaMonkey versions before 2.8, indicating a widespread impact across the Mozilla ecosystem.
The technical nature of this vulnerability involves unspecified flaws within the browser engine's memory management and data processing capabilities that result in memory corruption conditions. These memory corruption issues typically arise from improper handling of malformed input data or buffer overflows during the parsing of web content, multimedia files, or other data types processed by the browser engine. The vulnerability's classification as unspecified means that the exact technical mechanisms are not fully detailed in the initial reporting, but the impact clearly demonstrates that attackers can exploit these weaknesses to either crash applications through memory corruption or potentially gain remote code execution privileges. This type of vulnerability falls under the common weakness enumeration CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write vulnerabilities that can lead to memory corruption.
The operational impact of CVE-2012-0462 is severe and multifaceted, presenting both immediate denial of service conditions and potential remote code execution capabilities that could allow attackers to compromise user systems. When exploited for denial of service, the vulnerability can cause applications to crash repeatedly, rendering them unusable and disrupting user productivity. More concerning is the potential for arbitrary code execution, which would enable attackers to install malware, steal sensitive data, or establish persistent access to compromised systems. The remote nature of the attack vector means that users can be compromised simply by visiting malicious websites or opening specially crafted email attachments, making this vulnerability particularly dangerous in enterprise environments where users may inadvertently encounter malicious content. This vulnerability aligns with ATT&CK technique T1203, which covers exploitation for privilege escalation, and T1059, which involves command and scripting interpreters.
The remediation approach for CVE-2012-0462 requires immediate patching of affected systems across all supported Mozilla products. Organizations should prioritize updating Firefox, Thunderbird, and SeaMonkey to their latest versions, particularly noting that Firefox ESR 10.0.3, Thunderbird 10.0.3, and SeaMonkey 2.8 or later contain fixes for this vulnerability. System administrators should implement comprehensive patch management processes to ensure all affected systems receive updates promptly, as these vulnerabilities can be exploited by automated attack tools that scan for known vulnerable versions. Additionally, network administrators should consider implementing web filtering solutions to block access to known malicious domains and monitor for exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and highlights the critical need for organizations to have robust vulnerability management processes in place to address similar issues as they emerge in complex software ecosystems.