CVE-2025-29769

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

No CVSS.

References

Link	Resource
https://github.com/libvips/libvips/commit/9ab6784f693de50b00fa535b9efbbe9d2cbf71f2
https://github.com/libvips/libvips/pull/4392
https://github.com/libvips/libvips/pull/4394
https://github.com/libvips/libvips/security/advisories/GHSA-f8r8-43hh-rghm
https://issues.oss-fuzz.com/issues/396460413

Configurations

No configuration.

History

08 Apr 2025, 18:13

Type	Values Removed	Values Added
Summary		(es) 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.

07 Apr 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-04-07 20:15

Updated : 2025-04-08 18:13

NVD link : CVE-2025-29769

Mitre link : CVE-2025-29769

CVE.ORG link : CVE-2025-29769

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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