CVE-2010-3748 in RealPlayer
Summary
by MITRE
Stack-based buffer overflow in the RichFX component in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, and RealPlayer Enterprise 2.1.2 allows remote attackers to have an unspecified impact via unknown vectors.
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Analysis
by VulDB Data Team • 09/27/2021
The CVE-2010-3748 vulnerability represents a critical stack-based buffer overflow flaw discovered in the RichFX component of RealNetworks RealPlayer software versions 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.4, and RealPlayer Enterprise 2.1.2. This vulnerability resides within the multimedia processing capabilities of the software, specifically targeting the RichFX component that handles advanced visual effects and rendering operations. The flaw manifests as a classic stack buffer overflow condition where insufficient bounds checking allows malicious data to overwrite adjacent memory locations on the program stack, potentially leading to arbitrary code execution or application crashes.
The technical exploitation of this vulnerability occurs through carefully crafted malicious content that triggers the RichFX processing path within RealPlayer. When the vulnerable software attempts to process specially constructed media files or embedded content, the buffer overflow condition is triggered during the handling of visual effects parameters or rendering instructions. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is categorized as a fundamental memory safety issue where data written to a buffer exceeds the allocated stack space, overwriting adjacent memory locations including return addresses and local variables. The attack vector remains unspecified in the original description, suggesting that multiple pathways could potentially trigger the vulnerability through various media formats or embedded content types.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as stack-based buffer overflows in media players represent significant security risks that could enable remote code execution. Attackers could potentially craft malicious media files or web content that, when opened or played through the vulnerable RealPlayer versions, would execute arbitrary code on the target system with the privileges of the user running the application. This represents a serious threat in enterprise environments where users might inadvertently open malicious media content through email attachments, web browsing, or file downloads. The vulnerability's presence in multiple RealPlayer variants including the standard player, streaming player, and enterprise versions indicates a widespread exposure across different deployment scenarios, from individual users to large organizational networks.
From a cybersecurity perspective, this vulnerability aligns with ATT&CK technique T1203, which involves the exploitation of software vulnerabilities to gain system access through execution of malicious code. The remediation strategy should prioritize immediate patching of affected RealPlayer versions, as RealNetworks would have released security updates addressing the specific buffer overflow condition in the RichFX component. Organizations should implement network segmentation and content filtering to prevent access to potentially malicious media content, while also considering the deployment of endpoint protection solutions that can detect and block exploitation attempts. Additionally, user education regarding the dangers of opening untrusted media files and the importance of keeping software updated remains crucial in mitigating the risk of exploitation through this type of vulnerability. The vulnerability serves as a reminder of the critical importance of proper input validation and memory management practices in multimedia software components that handle untrusted data from external sources.