CVE-2019-25649 in River Past Audio Converter
Summary
by MITRE • 03/26/2026
River Past Audio Converter 7.7.16 contains a local buffer overflow vulnerability in the activation code field that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a large payload of repeated characters into the 'E-Mail and Activation Code' field and click 'Activate' to trigger a denial of service condition.
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Analysis
by VulDB Data Team • 03/26/2026
The vulnerability identified as CVE-2019-25649 represents a critical buffer overflow flaw within River Past Audio Converter version 7.7.16 that manifests specifically in the activation code field processing mechanism. This local privilege escalation vulnerability stems from inadequate input validation and bounds checking within the application's activation routine, creating a scenario where maliciously crafted input can overwrite adjacent memory segments. The flaw exists in the software's handling of user-supplied data during the activation process, where the application fails to properly sanitize or limit the length of strings entered into the email and activation code fields.
The technical implementation of this vulnerability falls under CWE-121, which categorizes buffer overflow conditions where insufficient bounds checking allows attackers to write beyond allocated memory buffers. When an attacker supplies an oversized payload consisting of repeated characters into the designated activation field and subsequently triggers the activation process, the application's memory management fails to handle the excessive input gracefully. This results in stack corruption that ultimately leads to application crash or potential arbitrary code execution depending on memory layout and exploitation circumstances. The vulnerability operates entirely within the local attack surface, requiring no network connectivity or external attack vectors.
Operationally, this vulnerability presents significant risks for system stability and user experience within environments where River Past Audio Converter is deployed. The denial of service condition can be easily triggered by any local user with access to the application, potentially disrupting legitimate workflow processes and creating unauthorized service interruption scenarios. The attack vector is particularly concerning because it requires minimal technical expertise to execute, making it accessible to both malicious insiders and less sophisticated attackers. Additionally, the vulnerability could serve as a foothold for more complex attacks if the application's memory corruption leads to exploitable conditions that allow privilege escalation or code injection.
Mitigation strategies for CVE-2019-25649 should prioritize immediate software updates from the vendor, as the vulnerability has been addressed in subsequent releases of River Past Audio Converter. System administrators should implement strict input validation measures at the application level, including implementing maximum length restrictions for activation fields and employing proper buffer management techniques. Network segmentation and access controls can help limit the potential impact of exploitation by restricting local user access to the vulnerable application. The vulnerability aligns with ATT&CK technique T1059.007, which covers application execution through command and scripting interpreters, as the exploitation involves manipulating application input fields to achieve system disruption. Regular security assessments and input validation reviews should be conducted to identify similar vulnerabilities in legacy applications and prevent similar buffer overflow conditions from occurring in other software components.