CVE-2025-9900
Libtiff: libtiff write-what-where
- State
- Published
- Severity
- 8.8 High
- Published
- Sep 23, 2025
- Updated
- Jun 29, 2026
- Reserved
- Sep 3, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-123 Write-what-where Condition
Affected Products
| Product | Versions |
|---|---|
libtiff |
|
Red Hat Enterprise Linux 10Red Hat |
|
Red Hat Enterprise Linux 10Red Hat |
|
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat |
|
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat |
|
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat |
|
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat |
|
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat AI Inference Server 3.2Red Hat |
|
Red Hat Discovery 2Red Hat |
|
Red Hat Hardened ImagesRed Hat |
|
Red Hat Enterprise Linux 6Red Hat |
References
- RHSA-2025:17651vendor-advisory
- RHSA-2025:17675vendor-advisory
- RHSA-2025:17710vendor-advisory
- RHSA-2025:17738vendor-advisory
- RHSA-2025:17739vendor-advisory
- RHSA-2025:17740vendor-advisory
- RHSA-2025:19113vendor-advisory
- RHSA-2025:19156vendor-advisory
- RHSA-2025:19276vendor-advisory
- RHSA-2025:19906vendor-advisory
- RHSA-2025:19947vendor-advisory
- RHSA-2025:20956vendor-advisory
- RHSA-2025:20998vendor-advisory
- RHSA-2025:21060vendor-advisory
- RHSA-2025:21061vendor-advisory
- RHSA-2025:21062vendor-advisory
- RHSA-2025:21407vendor-advisory
- RHSA-2025:21506vendor-advisory
- RHSA-2025:21507vendor-advisory
- RHSA-2025:21508vendor-advisory
- RHSA-2025:21994vendor-advisory
- RHSA-2025:23078vendor-advisory
- RHSA-2025:23079vendor-advisory
- RHSA-2025:23080vendor-advisory
- RHSA-2026:0001vendor-advisory
- RHSA-2026:0076vendor-advisory
- RHSA-2026:0077vendor-advisory
- RHSA-2026:0078vendor-advisory
- RHSA-2026:3461vendor-advisory
- RHSA-2026:3462vendor-advisory
- RHSA-2026:7504vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-9900vdb-entry
- RHBZ#2392784issue-tracking
- 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
- https://lists.debian.org/debian-lts-announce/2025/09/msg00031.html
- http://www.openwall.com/lists/oss-security/2025/09/26/3
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