Libtiff: libtiff write-what-where
Summary
| CVE | CVE-2025-9900 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-09-23 17:15:38 UTC |
| Updated | 2026-04-20 22:16:22 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.000360000 probability, percentile 0.106500000 (date 2026-04-20)
Problem Types: CWE-123 | CWE-123 Write-what-where Condition
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:4.6.0-6.el10_0.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:4.6.0-6.el10_1.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:3.9.4-12.el7_9.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:4.0.3-35.el7_9.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:3.9.4-14.el8_10 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:4.0.9-35.el8_10 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:4.0.9-3.el8_10 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 0:3.9.4-13.el8_2.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 0:4.0.9-17.el8_2.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 0:8.10-3.el8_2.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:3.9.4-13.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:4.0.9-18.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:8.10-3.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:3.9.4-13.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:4.0.9-18.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:8.10-3.el8_4.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:3.9.4-13.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:4.0.9-21.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:8.10-3.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 0:3.9.4-13.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 0:4.0.9-21.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 0:8.10-3.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions | unaffected 0:3.9.4-13.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions | unaffected 0:4.0.9-21.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions | unaffected 0:8.10-3.el8_6.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:3.9.4-13.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:4.0.9-29.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:8.10-3.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions | unaffected 0:3.9.4-13.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions | unaffected 0:4.0.9-29.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions | unaffected 0:8.10-3.el8_8.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:4.4.0-13.el9_6.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:4.4.0-15.el9_7.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions | unaffected 0:4.2.0-3.el9_0.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions | unaffected 0:4.4.0-8.el9_2.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 0:4.4.0-12.el9_4.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected sha256:bddcf7ab6d576572b6d60822c313ffebcd9869e4fde93e32ac327821f93cf32b * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected sha256:7856bdb7ae0d643a7b9362c164d4d4fe3c0c7186f5fff73a7ae9835b3df52e57 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected sha256:14e32e88f1b89f59ed34a6d712746b82a6a54c6ed4727784f18aeff853abbdc7 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected sha256:dcb9d1cd005c40b6db6f893e56419e383b9dcc0d38315605cb1457e2af5354f7 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected sha256:53007894763e03f609c35c727cb738db3c2130b19fa0e1069c24240e0870fb7a * rpm | Not specified |
| CNA | Red Hat | Red Hat Discovery 2 | unaffected sha256:310df392f638ef6eca1a26db024ae2cb617db5932f886d2acddc92fb7289e740 * rpm | Not specified |
| CNA | Red Hat | Red Hat Hardened Images | unaffected 4.7.1-2.1.hum1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 6 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:7504 | [email protected] | access.redhat.com | |
| libtiff.gitlab.io/libtiff/releases/v4.7.1.html | [email protected] | libtiff.gitlab.io | |
| access.redhat.com/errata/RHSA-2026:0001 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:20998 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17675 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17739 | [email protected] | access.redhat.com | |
| gitlab.com/libtiff/libtiff/-/merge_requests/732 | [email protected] | gitlab.com | |
| access.redhat.com/errata/RHSA-2025:23080 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:0077 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:23079 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:20956 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17738 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:19947 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21994 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:23078 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21407 | [email protected] | access.redhat.com | |
| www.openwall.com/lists/oss-security/2025/09/26/3 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| access.redhat.com/errata/RHSA-2025:19276 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21060 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:3461 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17710 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:0078 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21061 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:17651 | [email protected] | access.redhat.com | |
| lists.debian.org/debian-lts-announce/2025/09/msg00031.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | |
| access.redhat.com/errata/RHSA-2026:3462 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21508 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21507 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21062 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:19113 | [email protected] | access.redhat.com | |
| github.com/SexyShoelessGodofWar/LibTiff-4.7.0-Write-What-Where | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | github.com | |
| gitlab.com/libtiff/libtiff/-/issues/704 | [email protected] | gitlab.com | |
| access.redhat.com/errata/RHSA-2025:17740 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:19156 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2025-9900 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:0076 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:19906 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2025:21506 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Red Hat would like to thank Gareth C (AnchorSec Ltd.) for reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2025-09-03T02:48:12.111Z | Reported to Red Hat. |
| CNA | 2025-09-22T14:29:35.767Z | Made public. |
Workarounds
CNA: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
There are currently no legacy QID mappings associated with this CVE.