CVE-2017-18235 Denial of service in n/a

Medium 5.5 Published 15 Mar 2018 Updated 17 Sep 2024

Remote attackers can cause a denial of service via a crafted WebP file due to missing validation of image dimensions in the Exempi library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2017-18235?

CVE-2017-18235 is a medium-severity denial of service vulnerability in n/a, published on 15 Mar 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Exempi before 2.4.3. The VPXChunk class in XMPFiles/source/FormatSupport/WEBP_Support.cpp does not ensure nonzero widths and heights, which allows remote attackers to cause a denial of service (assertion failure and application exit) via a crafted .webp file.

Weakness: CWE-20

Which versions are affected by CVE-2017-18235?

It affects 1 product.

Products include Exempi Project Exempi.

How do I fix CVE-2017-18235?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-18235 being exploited?

There is no known exploitation of CVE-2017-18235 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-18235, GHSA-4p29-x5hq-25mf.