CVE-2025-62171

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In ImageMagick versions prior to 7.1.2-7 and 6.9.13-32, an integer overflow vulnerability exists in the BMP decoder on 32-bit systems. The vulnerability occurs in coders/bmp.c when calculating the extent value by multiplying image columns by bits per pixel. On 32-bit systems with size_t of 4 bytes, a malicious BMP file with specific dimensions can cause this multiplication to overflow and wrap to zero. The overflow check added to address CVE-2025-57803 is placed after the overflow occurs, making it ineffective. A specially crafted 58-byte BMP file with width set to 536,870,912 and 32 bits per pixel can trigger this overflow, causing the bytes_per_line calculation to become zero. This vulnerability only affects 32-bit builds of ImageMagick where default resource limits for width, height, and area have been manually increased beyond their defaults. 64-bit systems with size_t of 8 bytes are not vulnerable, and systems using default ImageMagick resource limits are not vulnerable. The vulnerability is fixed in versions 7.1.2-7 and 6.9.13-32."}, {"lang": "es", "value": "ImageMagick es una suite de software de c\u00f3digo abierto para mostrar, convertir y editar archivos de imagen r\u00e1ster. En las versiones de ImageMagick anteriores a la 7.1.2-7 y 6.9.13-32, existe una vulnerabilidad de desbordamiento de entero en el decodificador BMP en sistemas de 32 bits. La vulnerabilidad ocurre en coders/bmp.c al calcular el valor de extensi\u00f3n multiplicando las columnas de la imagen por los bits por p\u00edxel. En sistemas de 32 bits con size_t de 4 bytes, un archivo BMP malicioso con dimensiones espec\u00edficas puede causar que esta multiplicaci\u00f3n se desborde y se ajuste a cero. La comprobaci\u00f3n de desbordamiento a\u00f1adida para abordar CVE-2025-57803 se coloca despu\u00e9s de que ocurre el desbordamiento, lo que la hace ineficaz. Un archivo BMP de 58 bytes especialmente dise\u00f1ado con un ancho establecido en 536,870,912 y 32 bits por p\u00edxel puede desencadenar este desbordamiento, haciendo que el c\u00e1lculo de bytes_per_line se convierta en cero. Esta vulnerabilidad solo afecta a las compilaciones de 32 bits de ImageMagick donde los l\u00edmites de recursos predeterminados para ancho, alto y \u00e1rea se han aumentado manualmente m\u00e1s all\u00e1 de sus valores predeterminados. Los sistemas de 64 bits con size_t de 8 bytes no son vulnerables, y los sistemas que utilizan los l\u00edmites de recursos predeterminados de ImageMagick no son vulnerables. La vulnerabilidad est\u00e1 corregida en las versiones 7.1.2-7 y 6.9.13-32."}], "id": "CVE-2025-62171", "lastModified": "2026-10-19T16:10:00.260", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-62171", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-17T17:05:36.358600Z", "version": "2.0.3"}}]}, "published": "2025-10-17T17:15:49.197", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/ImageMagick/ImageMagick/commit/cea1693e2ded51b4cc91c70c54096cbed1691c00"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-9pp9-cfwx-54rm"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00019.html"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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{"created": "2025-10-20T13:21:58.420131+00:00", "updated": "2025-10-20T13:21:58.420155+00:00", "vendors": ["imagemagick", "imagemagick$PRODUCT$imagemagick"]}