CVE-2019-17546 Integer overflow in n/a

High 8.8 Published 14 Oct 2019 Updated 20 Dec 2024

An integer overflow in LibTIFF allows attackers to cause a heap-based buffer overflow via a crafted RGBA image, potentially leading to code execution or denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-17546?

CVE-2019-17546 is a high-severity vulnerability in Libtiff Libtiff, published on 14 Oct 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

tif_getimage.c in LibTIFF through 4.0.10, as used in GDAL through 3.0.1 and other products, has an integer overflow that potentially causes a heap-based buffer overflow via a crafted RGBA image, related to a "Negative-size-param" condition.

Weakness: CWE-787, CWE-190

Which versions are affected by CVE-2019-17546?

It affects 2 products.

Linux distribution packages (11)

`libtiff-tools` AlmaLinux:8	All versions	`4.0.9-18.el8`
`libtiff` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-18.el8`
`libtiff-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-18.el8`
`libtiff-debugsource` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-18.el8`
`libtiff-devel` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-18.el8`
`libtiff-tools-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-18.el8`
`libtiff-debuginfo` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-18.el8`
`libtiff-debugsource` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-18.el8`
`libtiff-tools` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-18.el8`
`libtiff-tools-debuginfo` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-18.el8`
`libtiff` Rocky Linux:8	All versions	`0:4.0.9-18.el8`

Products include Libtiff Libtiff, Osgeo Gdal.

How do I fix CVE-2019-17546?

Apply the vendor's patch.

Is CVE-2019-17546 being exploited?

There is no known exploitation of CVE-2019-17546 in the wild and no public exploit code.

All Libtiff Libtiff vulnerabilities

Sources

Also known as ALSA-2020:4634, AZL-44190, DEBIAN-CVE-2019-17546, DLA-2147-1, GHSA-24m4-fmx6-c2q6, JLSEC-2025-254 and 4 more.