CVE-2011-2809 in iTunes
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.5, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to iTunes Store browsing, a different vulnerability than other CVEs listed in APPLE-SA-2011-10-11-1.
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Analysis
by VulDB Data Team • 01/19/2025
The vulnerability identified as CVE-2011-2809 represents a critical security flaw in Apple iTunes versions prior to 10.5, specifically within the WebKit rendering engine component. This vulnerability manifests during iTunes Store browsing operations and demonstrates the inherent risks associated with web-based interfaces in media applications. The flaw enables malicious actors to perform man-in-the-middle attacks that can result in arbitrary code execution or system crashes, fundamentally compromising the integrity and availability of affected systems. The vulnerability operates through mechanisms that differ from other issues documented in APPLE-SA-2011-10-11-1, indicating a distinct attack surface within the iTunes application architecture.
The technical implementation of this vulnerability stems from memory corruption issues within the WebKit engine's handling of iTunes Store content. When users navigate the iTunes Store interface, the application processes web-based content that is rendered through WebKit, creating opportunities for attackers to manipulate the rendering process. The flaw likely involves improper memory management or buffer overflow conditions that occur during the parsing or execution of web content retrieved from iTunes Store servers. This type of vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and represents a classic example of how web rendering engines can become attack vectors when not properly secured against malformed content or malicious inputs.
The operational impact of CVE-2011-2809 extends beyond simple application instability to encompass potential system compromise and unauthorized code execution. Attackers exploiting this vulnerability could gain arbitrary code execution privileges within the iTunes application context, potentially leading to complete system compromise depending on the user's privileges. The memory corruption aspect of the flaw can cause application crashes that disrupt legitimate user operations, while the arbitrary code execution capability provides persistent attack vectors for more sophisticated threats. This vulnerability particularly affects enterprise environments where iTunes is deployed for software distribution or media management, as it could serve as a foothold for broader network infiltration.
Mitigation strategies for CVE-2011-2809 primarily focus on immediate software updates and security hardening measures. Apple's release of iTunes 10.5 addressed this vulnerability through patches that corrected the memory handling issues within the WebKit engine. Organizations should implement rapid deployment of the patched iTunes version across all affected systems to eliminate the attack surface. Network administrators should consider implementing additional security controls such as content filtering and traffic monitoring to detect potential exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date software components and highlights the risks associated with legacy applications that may not receive timely security updates, aligning with ATT&CK technique T1068 which covers exploit for privilege escalation and T1566 which addresses credential access through social engineering or compromised applications.