CVE-2010-2579 in RealPlayer
Summary
by MITRE
The cook codec in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, RealPlayer Enterprise 2.1.2, Mac RealPlayer 11.0 through 11.1, and Linux RealPlayer 11.0.2.1744 does not properly initialize the number of channels, which allows attackers to obtain unspecified "memory access" via unknown vectors.
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Analysis
by VulDB Data Team • 10/06/2021
The vulnerability identified as CVE-2010-2579 represents a critical memory access issue within the cook codec implementation of multiple RealNetworks RealPlayer versions across different platforms. This flaw exists in RealPlayer versions 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, RealPlayer Enterprise 2.1.2, Mac RealPlayer 11.0 through 11.1, and Linux RealPlayer 11.0.2.1744, making it a widespread concern affecting various operating systems and deployment scenarios. The vulnerability stems from improper initialization of the number of channels within the cook codec, which is a critical audio compression format used by RealNetworks for multimedia content delivery.
The technical nature of this vulnerability falls under the category of improper initialization, which is classified as CWE-456 in the Common Weakness Enumeration catalog. This weakness occurs when a program fails to properly initialize variables or data structures before using them, leading to unpredictable behavior and potential security implications. In this specific case, the failure to properly initialize channel count information creates a memory access condition that can be exploited by malicious actors. The unspecified "memory access" vector suggests that attackers can manipulate memory locations through crafted media files, potentially leading to buffer overflows, information disclosure, or arbitrary code execution depending on the execution environment and memory layout.
The operational impact of this vulnerability extends beyond simple playback functionality as it affects the core multimedia processing capabilities of RealPlayer across multiple platforms. Attackers can exploit this weakness by crafting specially designed media files that trigger the uninitialized channel count scenario, potentially leading to system compromise. The vulnerability's presence in both desktop and enterprise versions of RealPlayer means that organizations using these products face significant risk, particularly in environments where users might encounter malicious content through email attachments, web downloads, or untrusted media sources. The cross-platform nature of the vulnerability also indicates that attackers can target different operating systems with a single exploit vector, making it particularly dangerous.
Security practitioners should consider this vulnerability in relation to the attack tactics described in the MITRE ATT&CK framework, specifically under the execution and privilege escalation domains where media-based attacks often occur. The vulnerability's exploitation potential aligns with techniques involving file format parsing and memory corruption, which are commonly used in advanced persistent threat campaigns. Organizations should implement immediate mitigations including disabling RealPlayer functionality, applying available patches from RealNetworks, and deploying network-based intrusion detection systems to monitor for exploitation attempts. Additionally, user education regarding the dangers of opening unknown media files and implementing application whitelisting policies can help reduce the attack surface. The vulnerability serves as a reminder of the importance of proper input validation and initialization practices in multimedia codecs, as these components often handle untrusted data from external sources and require robust security measures to prevent exploitation.