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.
History

Mon, 13 Oct 2025 02:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel E4s
Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_aus:8.2::appstream
cpe:/a:redhat:rhel_aus:8.6::appstream
cpe:/a:redhat:rhel_e4s:8.6::appstream
cpe:/a:redhat:rhel_e4s:8.8::appstream
cpe:/a:redhat:rhel_tus:8.6::appstream
cpe:/a:redhat:rhel_tus:8.8::appstream
Vendors & Products Redhat rhel E4s
Redhat rhel Tus
References

Thu, 09 Oct 2025 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
References

Thu, 09 Oct 2025 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel Eus Long Life
CPEs cpe:/a:redhat:enterprise_linux:8::appstream
cpe:/a:redhat:rhel_aus:8.4::appstream
cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
Vendors & Products Redhat rhel Aus
Redhat rhel Eus Long Life
References

Wed, 08 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:rhivos:1
Vendors & Products Redhat rhivos

Wed, 01 Oct 2025 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhivos
CPEs cpe:/o:redhat:rhivos:1
Vendors & Products Redhat rhivos

Tue, 23 Sep 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 23 Sep 2025 16:45:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. 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.
Title libtiff: Libtiff Write-What-Where Libtiff: libtiff write-what-where
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References

Tue, 23 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title libtiff: Libtiff Write-What-Where
Weaknesses CWE-123
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

threat_severity

Important


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2025-09-23T16:26:22.846Z

Updated: 2025-10-13T01:25:47.180Z

Reserved: 2025-09-03T03:01:04.778Z

Link: CVE-2025-9900

cve-icon Vulnrichment

Updated: 2025-09-23T18:31:21.984Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-23T17:15:38.357

Modified: 2025-10-13T02:15:34.853

Link: CVE-2025-9900

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-22T14:29:35Z

Links: CVE-2025-9900 - Bugzilla