CVE-2018-13121 in RealOne Player
Summary
by MITRE
RealOne Player 2.0 Build 6.0.11.872 allows remote attackers to cause a denial of service (array out-of-bounds access and application crash) via a crafted .aiff file.
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Analysis
by VulDB Data Team • 02/24/2020
The vulnerability identified as CVE-2018-13121 affects RealOne Player version 2.0 build 6.0.11.872 and represents a critical denial of service flaw stemming from improper input validation during media file parsing. This issue manifests when the application processes a specially crafted .aiff file, which triggers an array out-of-bounds access condition that ultimately leads to application crash and complete service disruption. The vulnerability resides in the audio file handling component of the media player, specifically within the parsing logic that does not adequately validate the structure and boundaries of audio metadata within the aiff container format.
From a technical perspective, the flaw constitutes a classic buffer overflow vulnerability that falls under the CWE-129 category of "Improper Validation of Array Index." The application fails to properly validate array indices when processing the metadata fields within the .aiff file structure, allowing an attacker to craft malicious audio files that contain malformed data structures. When the player attempts to parse these crafted files, the software's internal array management routines encounter invalid memory access patterns that result in segmentation faults and subsequent application termination. This type of vulnerability is particularly dangerous in media player applications as it can be easily exploited through social engineering or automated attack vectors.
The operational impact of this vulnerability extends beyond simple service disruption to encompass potential security implications for systems that rely on RealOne Player for audio processing. Attackers can leverage this flaw to perform denial of service attacks against targeted systems, potentially disrupting audio playback services or affecting multimedia applications that depend on the player's functionality. The vulnerability is particularly concerning because .aiff files are commonly used in professional audio applications and broadcast environments, making the attack surface broader than initially apparent. From an attacker's perspective, this represents a low-effort, high-impact method for causing service disruption without requiring elevated privileges or complex exploitation techniques.
Mitigation strategies for CVE-2018-13121 should focus on immediate patching of the affected RealOne Player version, as well as implementing input validation controls at network boundaries and application level. Organizations should consider deploying network segmentation to limit exposure to potentially malicious media files and implement automated scanning solutions to detect and quarantine suspicious .aiff files before they reach end-user systems. The vulnerability aligns with ATT&CK technique T1499.004 which covers "Network Denial of Service" and demonstrates how media processing applications can become attack vectors for service disruption. Additionally, this flaw represents a common pattern in multimedia software vulnerabilities where insufficient input validation leads to memory corruption issues that can be exploited for both denial of service and potentially more severe attacks if combined with other vulnerabilities. System administrators should also consider implementing application whitelisting policies to restrict execution of unauthorized media player versions and ensure that all media processing components are regularly updated with the latest security patches.