Write-what-where Condition Affecting spice-client-win-x86 package, versions <0:8.10-3.el8_8.1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.74% (50th percentile)

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  • Snyk IDSNYK-RHEL8-SPICECLIENTWINX86-14865108
  • published5 Jan 2026
  • disclosed22 Sept 2025

Introduced: 22 Sep 2025

CVE-2025-9900  (opens in a new tab)
CWE-123  (opens in a new tab)

How to fix?

Upgrade RHEL:8 spice-client-win-x86 to version 0:8.10-3.el8_8.1 or higher.
This issue was patched in RHSA-2026:0001.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spice-client-win-x86 package and not the spice-client-win-x86 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1