CVE-2015-2708 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 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-2015-2708 represents a critical security flaw affecting Mozilla Firefox and Thunderbird email clients across multiple versions. This issue resides within the browser engine component that processes web content and handles various data types, making it a fundamental attack surface for remote exploitation. The affected versions include Firefox prior to 38.0 and Firefox ESR 31.x prior to 31.7, along with Thunderbird versions before 31.7, indicating a widespread impact across the Mozilla ecosystem. The vulnerability manifests through unspecified attack vectors that can lead to severe consequences including memory corruption and application instability.
The technical nature of this vulnerability falls under the category of memory corruption flaws that can be exploited to achieve arbitrary code execution or denial of service conditions. These types of vulnerabilities typically arise from improper handling of memory allocation, buffer overflows, or use-after-free conditions within the browser engine's codebase. The unspecified vectors suggest that attackers could potentially leverage multiple attack paths including malformed web content, malicious attachments, or crafted web pages that trigger the underlying memory management issues. Such vulnerabilities are particularly dangerous because they can be triggered through normal web browsing activities without requiring user interaction beyond visiting a malicious website.
From an operational perspective, this vulnerability presents significant risk to organizations relying on affected Mozilla products for email and web browsing. The potential for remote code execution means that attackers could gain complete control over affected systems, making it a prime target for advanced persistent threats. The denial of service aspect creates additional operational concerns as it can be used to disrupt services and cause system instability. Organizations using affected versions of Firefox or Thunderbird face exposure to attacks that could compromise sensitive data, facilitate lateral movement within networks, or serve as a foothold for more extensive breaches. The vulnerability's impact extends beyond individual users to enterprise environments where these applications are widely deployed.
Mitigation strategies for CVE-2015-2708 primarily focus on immediate software updates and patches provided by Mozilla. Organizations should prioritize upgrading to Firefox 38.0 or later versions, Firefox ESR 31.7 or later, and Thunderbird 31.7 or later to address the memory corruption issues. Security administrators should implement patch management processes to ensure timely deployment of security updates across all affected systems. Additional defensive measures include network segmentation to limit exposure, web content filtering to block malicious content, and monitoring for suspicious network activity that might indicate exploitation attempts. The vulnerability aligns with ATT&CK techniques related to privilege escalation and remote code execution through browser exploitation, making it a critical target for security teams implementing comprehensive threat hunting programs. Organizations should also consider implementing browser hardening measures and maintaining updated security tooling to detect and prevent exploitation attempts.