CVE-2023-37767 in GPAC
Summary
by MITRE • 07/12/2023
GPAC v2.3-DEV-rev381-g817a848f6-master was discovered to contain a segmentation violation in the BM_ParseIndexValueReplace function at /lib/libgpac.so.
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Analysis
by VulDB Data Team • 01/18/2026
The vulnerability identified as CVE-2023-37767 represents a critical segmentation fault within the GPAC multimedia framework version 2.3-DEV-rev381-g817a848f6-master. This issue manifests in the BM_ParseIndexValueReplace function located within the /lib/libgpac.so library, which serves as a core component for handling multimedia content processing and parsing operations. The segmentation violation occurs when the application attempts to access memory that it should not have access to, leading to an abrupt program termination and potential system instability.
The technical flaw stems from inadequate input validation and memory management within the BM_ParseIndexValueReplace function, which processes index values during multimedia file parsing operations. When malformed or maliciously crafted input data is processed by this function, it triggers a memory access violation that results in a segmentation fault. This type of vulnerability falls under CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations. The vulnerability is particularly concerning because it exists in a library that handles multimedia content parsing, making it susceptible to exploitation through crafted media files or network-based attacks.
The operational impact of this vulnerability extends beyond simple program crashes, as it can enable remote code execution under certain conditions. Attackers who can influence the input processed by the BM_ParseIndexValueReplace function may be able to craft malicious multimedia files that trigger the segmentation fault, potentially leading to arbitrary code execution on systems running affected GPAC versions. This vulnerability affects systems that utilize GPAC for multimedia processing, including content servers, media players, and multimedia applications that depend on the library for parsing and handling various media formats. The attack surface is broad given GPAC's widespread use in multimedia processing applications across different platforms and operating systems.
Security practitioners should prioritize immediate mitigation of this vulnerability through patch updates from the GPAC development team, as the segmentation fault can be exploited to compromise system integrity and potentially provide attackers with unauthorized access to affected systems. Organizations utilizing GPAC in their multimedia processing pipelines must conduct thorough vulnerability assessments to identify all systems that may be exposed to this threat. The recommended approach includes implementing strict input validation for all multimedia content, deploying network segmentation to limit exposure, and monitoring system logs for signs of exploitation attempts. Additionally, the vulnerability aligns with ATT&CK technique T1059.007, which covers command and scripting interpreter execution, as attackers may leverage the segmentation fault to establish persistent access through malicious media file delivery. System administrators should also consider implementing application whitelisting policies and restricting access to multimedia processing functions to minimize potential exploitation vectors.