CVE-2023-43361 in vorbis-tools
Summary
by MITRE • 10/25/2023
Buffer Overflow vulnerability in Vorbis-tools v.1.4.2 allows a local attacker to execute arbitrary code and cause a denial of service during the conversion of wav files to ogg files.
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Analysis
by VulDB Data Team • 11/06/2025
The vulnerability CVE-2023-43361 represents a critical buffer overflow flaw within the Vorbis-tools software suite version 1.4.2 that specifically impacts the conversion process from wav to ogg audio file formats. This issue arises during the handling of malformed input files where the application fails to properly validate buffer boundaries when processing audio data. The vulnerability is classified as a local privilege escalation vector since it requires an attacker to have system access to exploit the flaw, though the potential impact extends beyond simple denial of service to full code execution capabilities. The affected component operates within the audio processing pipeline of the Vorbis-tools utility, which is widely used for encoding and decoding audio files in the ogg format.
Technical exploitation of this buffer overflow occurs when the application processes specially crafted wav files that contain oversized or malformed data structures within the audio headers or metadata sections. The flaw manifests during the conversion routine where insufficient bounds checking allows an attacker to overwrite adjacent memory locations in the process heap or stack. This memory corruption can be leveraged to redirect program execution flow through return address overwrite techniques or by corrupting function pointers within the application's memory space. The vulnerability aligns with CWE-121 which describes stack-based buffer overflow conditions, and potentially CWE-122 for heap-based buffer overflows that may occur during dynamic memory allocation within the audio processing library. The attack surface is particularly concerning as it involves standard audio file processing utilities that are frequently used in automated workflows and system administration tasks.
The operational impact of CVE-2023-43361 extends beyond simple system instability to potentially enable complete system compromise when exploited by malicious actors. Local attackers can leverage this vulnerability to execute arbitrary code with the privileges of the user running the Vorbis-tools application, which may include administrative rights in many system configurations. The denial of service aspect of this vulnerability can be particularly damaging in environments where audio processing is automated or integrated into critical workflows, potentially causing service interruptions that affect legitimate users. Organizations utilizing Vorbis-tools for audio processing in production environments face significant risk as this vulnerability can be exploited through various attack vectors including social engineering or compromise of systems that process user-uploaded audio files. The vulnerability also presents challenges in automated scanning environments where audio file conversion utilities may be invoked without proper input validation, creating potential for widespread exploitation.
Mitigation strategies for CVE-2023-43361 should prioritize immediate patching of affected Vorbis-tools installations to version 1.4.3 or later, which contains the necessary buffer overflow protections and input validation improvements. System administrators should implement strict input validation procedures for all audio file processing workflows, including sanitization of file headers and metadata before processing. Network segmentation and privilege separation techniques can limit the potential impact of exploitation by ensuring that audio processing utilities operate with minimal required privileges. Additionally, monitoring systems should be configured to detect unusual patterns in audio file processing activities that may indicate attempted exploitation. The ATT&CK framework categorizes this vulnerability under T1059.007 for command and scripting interpreter usage, as exploitation may involve crafting malicious audio files to trigger the buffer overflow. Organizations should also consider implementing application whitelisting policies to restrict execution of untrusted audio processing utilities and maintain regular vulnerability assessments of audio processing pipelines to identify similar security gaps in related software components.