CVE-2026-45383

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{"affected": [{"affectedData": [{"product": "libde265", "vendor": "strukturag", "versions": [{"status": "affected", "version": "< 1.0.19"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in `decoder_context::decode_slice_unit_WPP()` in `libde265/decctx.cc`. When decoding a WPP (Wavefront Parallel Processing) HEVC slice, `ctbAddrRS` is computed as `ctbRow * ctbsWidth` inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds `pps.CtbAddrRStoTS.size()`, the subsequent array access `pps.CtbAddrRStoTS[ctbAddrRS]` reads past the end of the allocated vector, triggering a heap-buffer-overflow confirmed by AddressSanitizer. Version 1.0.19 patches the issue."}, {"lang": "es", "value": "libde265 es una implementaci\u00f3n de c\u00f3digo abierto del c\u00f3dec de video h.265. En las versiones anteriores a la 1.0.19, existe un desbordamiento de b\u00fafer de mont\u00f3n (lectura fuera de l\u00edmites) en decoder_context::decode_slice_unit_WPP() en libde265/decctx.cc. Al decodificar una porci\u00f3n HEVC WPP (Procesamiento Paralelo de Frente de Onda), ctbAddrRS se calcula como ctbRow * ctbsWidth dentro del bucle de punto de entrada. Si los encabezados PPS/SPS se manipulan de modo que este valor exceda pps.CtbAddrRStoTS.size(), el acceso posterior al array pps.CtbAddrRStoTS[ctbAddrRS] lee m\u00e1s all\u00e1 del final del vector asignado, lo que desencadena un desbordamiento de b\u00fafer de mont\u00f3n confirmado por AddressSanitizer. La versi\u00f3n 1.0.19 corrige el problema."}], "id": "CVE-2026-45383", "lastModified": "2026-10-24T19:10:00.127", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45383", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-22T15:35:57.170282Z", "version": "2.0.3"}}]}, "published": "2026-07-21T21:16:50.000", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-wg9q-ppqw-6q38"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.0.19)"}}], "enrichment": {"confidence": 94.0, "confidence_source": "matching", "scores": [{"score": 94.0, "source": "matching"}]}, "original": {"product": "libde265", "source": "cna", "vendor": "strukturag"}, "product": "libde265", "vendor": "struktur"}], "created": "2026-07-24T03:00:04.324258+00:00", "updated": "2026-07-30T16:30:05.502690+00:00", "vendors": ["struktur", "struktur$PRODUCT$libde265"]}