CVE-2025-9900
Vulnérabilité élevée
Description
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.
Gravité et risque d'exploitation
CVE-2025-9900 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.97 %, ce qui la place devant 61.2 % des CVE référencées.
Que faire ?
- Vérifiez si le produit concerné (versions 0:4.6.0-6.el10_0.1, 1772160625, <4.7.1, 0:3.9.4-13.el8_8.1, 0, 3.2.2-1765379049, 0:3.9.4-12.el7_9.1, 0:3.9.4-13.el8_2.1, 0:8.10-3.el8_4.1, <*, 0:4.0.9-29.el8_8.1, 0:3.9.4-13.el8_4.1, 4.7.1-2.1.hum1, 0:4.4.0-13.el9_6.2, 0:8.10-3.el8_8.1, 0:3.9.4-14.el8_10, 0:8.10-3.el8_6.1, 0:4.0.9-35.el8_10, 0:4.4.0-12.el9_4.4, 0:4.0.9-21.el8_6.1, 3.2.2-1765379088, 0:3.9.4-13.el8_6.1, 0:4.2.0-3.el9_0.2, 1772160593, 3.2.2-1764871796, 0:4.0.9-18.el8_4.1, 0:4.0.9-17.el8_2.1, 0:4.4.0-8.el9_2.4, 0:4.4.0-15.el9_7.2, 2.4.0-1763656152, 0:4.0.3-35.el7_9.1, 0:4.0.9-3.el8_10, 0:8.10-3.el8_2.1, 0:4.6.0-6.el10_1.1) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- 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
