CVE-2024-47775 in GStreamer
Summary
by MITRE • 12/12/2024
GStreamer is a library for constructing graphs of media-handling components. An OOB-read vulnerability has been found in the parse_ds64 function within gstwavparse.c. The parse_ds64 function does not check that the buffer buf contains sufficient data before attempting to read from it, doing multiple GST_READ_UINT32_LE operations without performing boundary checks. This can lead to an OOB-read when buf is smaller than expected. This vulnerability allows reading beyond the bounds of the data buffer, potentially leading to a crash (denial of service) or the leak of sensitive data. This vulnerability is fixed in 1.24.10.
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Analysis
by VulDB Data Team • 02/18/2025
The vulnerability identified as CVE-2024-47775 affects GStreamer, a comprehensive multimedia framework and library used for constructing media-handling component graphs. This issue resides within the gstwavparse.c source file where the parse_ds64 function processes WAV file data structures. The flaw represents a classic out-of-bounds read condition that occurs during the parsing of the ds64 chunk in WAV files, which is part of the RIFF (Resource Interchange File Format) specification used for audio files. The vulnerability stems from inadequate input validation and buffer boundary checking within the media parsing logic.
The technical implementation of this vulnerability involves the parse_ds64 function performing multiple GST_READ_UINT32_LE operations without first verifying that the input buffer contains sufficient data to support these reads. This particular pattern of operation directly violates fundamental security principles for buffer management and input validation. When an attacker provides a malformed WAV file with a ds64 chunk that is smaller than expected, the function attempts to read beyond the allocated buffer boundaries, resulting in an out-of-bounds memory access. This type of vulnerability is classified as CWE-129, which specifically addresses insufficient validation of length of inputs, and can be categorized under the broader ATT&CK technique of T1059.007 for Command and Scripting Interpreter, as it enables potential code execution or information disclosure through memory corruption.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it creates potential pathways for information disclosure through memory leaks. When the out-of-bounds read occurs, it may inadvertently expose sensitive data from adjacent memory locations, including stack contents, heap data, or other process memory segments. This could lead to credential exposure, application state leakage, or other sensitive information compromise depending on the system context. The vulnerability is particularly concerning in environments where GStreamer processes untrusted media files, such as web applications, media processing servers, or content delivery networks that handle user-uploaded audio files. The potential for remote code execution cannot be entirely ruled out, as the memory corruption could be exploited to manipulate program flow, especially when combined with other vulnerabilities or in specific system configurations.
Mitigation strategies for CVE-2024-47775 should prioritize immediate patch deployment to version 1.24.10, which contains the necessary fixes for the buffer boundary checking implementation. Organizations should implement comprehensive input validation for all media file processing pipelines, particularly focusing on boundary checks before any read operations on potentially untrusted data. Additional protective measures include deploying memory protection mechanisms such as stack canaries, address space layout randomization, and heap-based buffer overflow protections. Network segmentation and access controls should be implemented to limit exposure of systems processing media files to untrusted inputs. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the media processing stack, as the vulnerability pattern suggests potential for similar issues in other parsing functions within the GStreamer framework. The fix implemented in version 1.24.10 demonstrates proper boundary checking implementation that aligns with industry best practices for secure coding standards and should serve as a reference for similar buffer validation scenarios in multimedia processing libraries.