Описание
The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.
A flaw was found in the golang.org/x/image/tiff package's TIFF decoder. This vulnerability occurs because the decoder does not properly limit the size of PackBits-compressed data. A remote attacker could exploit this by providing a maliciously-crafted image, leading to the decoder processing excessive amounts of data. This can result in a Denial of Service (DoS) due to resource exhaustion, even with a small input image.
Отчет
Red Hat rates this issue as Moderate with RH CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). A flaw was found in golang.org/x/image/tiff where the TIFF decoder does not limit the size of PackBits-compressed data. A maliciously crafted TIFF image with small declared dimensions can cause the decoder to process disproportionately large amounts of compressed data, leading to resource exhaustion. Exploitation requires user interaction (opening a crafted TIFF file). Most Red Hat products that bundle golang.org/x/image do not process untrusted TIFF input in their supported execution paths.
Меры по смягчению последствий
Update affected Go applications to use golang.org/x/image version 0.41.0 or later, which limits the amount of compressed data the decoder will process. As a workaround, restrict accepted image formats at the application edge and reject TIFF input where it is not a required format. Applications that do not decode untrusted TIFF images are not affected.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Logging Subsystem for Red Hat OpenShift | openshift-logging/cluster-logging-rhel9-operator | Fix deferred | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/volsync-rhel9 | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | openshift4/ose-tests-rhel9 | Fix deferred | ||
| Cryostat 4 on RHEL 9 | cryostat/cryostat-storage-rhel9 | Fixed | RHSA-2026:48151 | 29.07.2026 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.
The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.
The TIFF decoder does not place a limit on the size of PackBits-compre ...
golang.org/x/image/tiff has excessive resource consumption in PackBits decompression
EPSS
6.5 Medium
CVSS3