CVE-2026-62289

{"id": "CVE-2026-62289", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62289", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-19T16:49:33.062873Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "strukturag", "product": "libheif", "versions": [{"status": "affected", "version": "< 1.23.1"}]}]}], "published": "2026-08-18T22:17:02.720", "references": [{"url": "https://github.com/strukturag/libheif/commit/f01870c1d7323a3003796d58eba7fff502be994c", "source": "security-advisories@github.com"}, {"url": "https://github.com/strukturag/libheif/releases/tag/v1.23.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-jc8f-p23p-5hjg", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-191"}, {"lang": "en", "value": "CWE-617"}]}], "descriptions": [{"lang": "en", "value": "libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF or AVIF file containing a clean aperture box can reduce an image dimension to zero and crash or corrupt tiling results when heif_image_handle_get_image_tiling(handle, 1, &tiling) is called. ImageItem::get_heif_image_tiling() returns already transformed dimensions, and process_image_transformations_on_tiling() applies the clean aperture transformation again. The second application passes zero to Box_clap::left_rounded(0), where image_width minus one underflows and constructs Fraction(0xFFFFFFFF, 2). Debug builds reach an assertion and abort, while release builds can return a corrupt crop and zero-width tiling result. The affected implementation spans libheif/image-items/image_item.cc, libheif/context.cc, and libheif/box.cc. This issue is fixed in version 1.23.1."}, {"lang": "es", "value": "libheif es un decodificador y codificador de formato de archivo HEIF y AVIF. En la versi\u00f3n 1.23.0 y anteriores, un archivo HEIF o AVIF manipulado que contiene una caja de apertura limpia puede reducir una dimensi\u00f3n de imagen a cero y provocar un fallo o corromper los resultados del mosaico cuando se llama a heif_image_handle_get_image_tiling(handle, 1, &tiling). ImageItem::get_heif_image_tiling() devuelve dimensiones ya transformadas, y process_image_transformations_on_tiling() aplica la transformaci\u00f3n de apertura limpia de nuevo. La segunda aplicaci\u00f3n pasa cero a Box_clap::left_rounded(0), donde image_width menos uno provoca un desbordamiento negativo y construye Fraction(0xFFFFFFFF, 2). Las compilaciones de depuraci\u00f3n alcanzan una aserci\u00f3n y abortan, mientras que las compilaciones de lanzamiento pueden devolver un recorte corrupto y un resultado de mosaico de ancho cero. La implementaci\u00f3n afectada abarca libheif/image-items/image_item.cc, libheif/context.cc y libheif/box.cc. Este problema est\u00e1 corregido en la versi\u00f3n 1.23.1."}], "lastModified": "2026-10-22T16:09:59.560", "sourceIdentifier": "security-advisories@github.com"}