CVE-2025-9900

A flaw was found in Libtiff. This vulnerability is a "write-what-where" condition, triggered when the library processes a specially crafted TIFF image file. By providing an abnormally large image height value in the file's metadata, an attacker can trick the library into writing attacker-controlled color data to an arbitrary memory location. This memory corruption can be exploited to cause a denial of service (application crash) or to achieve arbitrary code execution with the permissions of the user.
References
Link Resource
https://access.redhat.com/errata/RHSA-2025:17651
https://access.redhat.com/errata/RHSA-2025:17675
https://access.redhat.com/errata/RHSA-2025:17710
https://access.redhat.com/errata/RHSA-2025:17738
https://access.redhat.com/errata/RHSA-2025:17739
https://access.redhat.com/errata/RHSA-2025:17740
https://access.redhat.com/errata/RHSA-2025:19113
https://access.redhat.com/errata/RHSA-2025:19156
https://access.redhat.com/errata/RHSA-2025:19276
https://access.redhat.com/errata/RHSA-2025:19906
https://access.redhat.com/errata/RHSA-2025:19947
https://access.redhat.com/errata/RHSA-2025:20956
https://access.redhat.com/errata/RHSA-2025:20998
https://access.redhat.com/errata/RHSA-2025:21060
https://access.redhat.com/errata/RHSA-2025:21061
https://access.redhat.com/errata/RHSA-2025:21062
https://access.redhat.com/errata/RHSA-2025:21407
https://access.redhat.com/errata/RHSA-2025:21506
https://access.redhat.com/errata/RHSA-2025:21507
https://access.redhat.com/errata/RHSA-2025:21508
https://access.redhat.com/errata/RHSA-2025:21994
https://access.redhat.com/errata/RHSA-2025:23078
https://access.redhat.com/errata/RHSA-2025:23079
https://access.redhat.com/errata/RHSA-2025:23080
https://access.redhat.com/errata/RHSA-2026:0001
https://access.redhat.com/errata/RHSA-2026:0076
https://access.redhat.com/errata/RHSA-2026:0077
https://access.redhat.com/errata/RHSA-2026:0078
https://access.redhat.com/errata/RHSA-2026:3461
https://access.redhat.com/errata/RHSA-2026:3462
https://access.redhat.com/errata/RHSA-2026:7504
https://access.redhat.com/security/cve/CVE-2025-9900
https://bugzilla.redhat.com/show_bug.cgi?id=2392784
https://github.com/SexyShoelessGodofWar/LibTiff-4.7.0-Write-What-Where?tab=readme-ov-file
https://gitlab.com/libtiff/libtiff/-/issues/704
https://gitlab.com/libtiff/libtiff/-/merge_requests/732
https://libtiff.gitlab.io/libtiff/releases/v4.7.1.html
http://www.openwall.com/lists/oss-security/2025/09/26/3
https://lists.debian.org/debian-lts-announce/2025/09/msg00031.html
https://github.com/SexyShoelessGodofWar/LibTiff-4.7.0-Write-What-Where?tab=readme-ov-file
Configurations

No configuration.

History

26 Sep 2026, 00:10

Type Values Removed Values Added
Summary
  • (es) Se encontró una falla en Libtiff. Esta vulnerabilidad es una condición de “write-what-where”, que se activa cuando la biblioteca procesa un archivo de imagen TIFF especialmente diseñado. Al proporcionar un valor de altura de imagen anormalmente grande en los metadatos del archivo, un atacante puede engañar a la biblioteca para que escriba datos de color controlados por el atacante en una ubicación de memoria arbitraria. Esta corrupción de memoria puede ser explotada para causar una denegación de servicio (cierre inesperado de la aplicación) o para lograr ejecución de código arbitrario con los permisos del usuario.

Information

Published : 2025-09-23 17:15

Updated : 2026-09-26 00:10


NVD link : CVE-2025-9900

Mitre link : CVE-2025-9900

CVE.ORG link : CVE-2025-9900


JSON object : View

Products Affected

No product.

CWE
CWE-123

Write-what-where Condition