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CVE-2025-29769

Estado: AnalizadaAlta (8.5)—

libvips is a demand-driven, horizontally threaded image processing library. The heifsave operation could incorrectly determine the presence of an alpha channel in an input when it was not possible to determine the colour interpretation, known internally within libvips as "multiband". There aren't many ways to create a "multiband" input, but it is possible with a well-crafted TIFF image. If a "multiband" TIFF input image had 4 channels and HEIF-based output was requested, this led to libvips creating a 3 channel HEIF image without an alpha channel but then attempting to write 4 channels of data. This caused a heap buffer overflow, which could crash the process. This vulnerability is fixed in 8.16.1.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector local (AV:L) con PR:L sin interacción → T1068. Heap buffer overflow en procesamiento de TIFF causa crash (T1499.004) o potencial ejecución de código (T1059), confirmado por CWE-122.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

Tecnologías afectadas (2)

Debian — Debian LinuxLibvips — Libvips

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "libvips is a demand-driven, horizontally threaded image processing library.  The heifsave operation could incorrectly determine the presence of an alpha channel in an input when it was not possible to determine the colour interpretation, known internally within libvips as \"multiband\". There aren't many ways to create a \"multiband\" input, but it is possible with a well-crafted TIFF image. If a \"multiband\" TIFF input image had 4 channels and HEIF-based output was requested, this led to libvips creating a 3 channel HEIF image without an alpha channel but then attempting to write 4 channels of data. This caused a heap buffer overflow, which could crash the process. This vulnerability is fixed in 8.16.1."
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      "value": "libvips es una librería de procesamiento de imágenes basada en demanda y con subprocesos horizontales. La operación heifsave podía determinar incorrectamente la presencia de un canal alfa en una entrada cuando no era posible determinar la interpretación del color, lo que se conoce internamente en libvips como \"multibanda\". No existen muchas maneras de crear una entrada \"multibanda\", pero es posible con una imagen TIFF bien manipulada. Si una imagen de entrada TIFF \"multibanda\" tenía 4 canales y se solicitaba una salida basada en HEIF, libvips creaba una imagen HEIF de 3 canales sin canal alfa, pero luego intentaba escribir 4 canales de datos. Esto provocaba un desbordamiento del búfer de pila, lo que podía bloquear el proceso. Esta vulnerabilidad se corrigió en la versión 8.16.1."
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