CVE-2022-26711 in iTunes
Summary
by MITRE • 05/26/2022
An integer overflow issue was addressed with improved input validation. This issue is fixed in tvOS 15.5, iTunes 12.12.4 for Windows, iOS 15.5 and iPadOS 15.5, watchOS 8.6, macOS Monterey 12.4. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 06/01/2022
The vulnerability identified as CVE-2022-26711 represents a critical integer overflow condition that affects multiple Apple operating systems including tvOS, iOS, iPadOS, watchOS, and macOS. This flaw stems from inadequate input validation mechanisms within Apple's software implementations, creating potential pathways for malicious actors to exploit the system's handling of numerical values. The integer overflow occurs when an application processes input data that exceeds the maximum value that can be stored in a designated integer variable, leading to unexpected behavior in the software execution flow. Such vulnerabilities are particularly dangerous because they can be leveraged to trigger system instability or enable more sophisticated attacks that bypass normal security controls.
The technical nature of this vulnerability aligns with CWE-190, which specifically addresses integer overflow conditions that can result in unexpected program behavior. When an integer overflow occurs, the program's execution flow can be manipulated to cause buffer overflows, memory corruption, or other exploitable conditions. In this case, the remote attacker can potentially cause applications to terminate unexpectedly or execute arbitrary code, which represents a significant escalation from simple application crashes to full system compromise. The vulnerability's remote exploitability means that attackers do not need physical access to the device or network proximity to the target system, making it particularly concerning for widespread deployment.
The operational impact of CVE-2022-26711 extends beyond simple service disruption to potentially enable complete system compromise. When applications crash or behave unpredictably due to integer overflow conditions, attackers can leverage these instabilities to inject malicious code into the system memory space. This capability allows for privilege escalation and persistent access to affected devices, particularly concerning in environments where Apple devices handle sensitive information or serve as network entry points. The vulnerability affects a broad range of Apple products, from mobile devices to desktop systems, making it a significant concern for enterprise environments that rely heavily on Apple ecosystem products. The attack surface is further expanded by the fact that these vulnerabilities can be exploited through various attack vectors including malicious email attachments, compromised websites, or even through legitimate application updates if proper validation mechanisms are not in place.
Apple's response to this vulnerability included comprehensive updates across all affected platforms, with specific versions mentioned including tvOS 15.5, iTunes 12.12.4 for Windows, iOS 15.5, iPadOS 15.5, watchOS 8.6, and macOS Monterey 12.4. These updates implement improved input validation techniques that prevent the integer overflow conditions from occurring during normal operation. Organizations should prioritize immediate deployment of these patches across their device fleets to mitigate the risk of exploitation. The mitigation strategy should include not only software updates but also network monitoring for potential exploitation attempts, particularly focusing on unusual application termination patterns or unexpected memory usage spikes that might indicate exploitation attempts. Security teams should also consider implementing additional protective measures such as application whitelisting and network segmentation to limit potential damage from successful exploitation attempts, aligning with ATT&CK framework techniques that focus on privilege escalation and persistence mechanisms.