CVE-2018-18650 Integer overflow in n/a

Medium 5.5 Published 25 Oct 2018 Updated 17 Sep 2024

Attackers can cause a denial of service in Xpdf via a crafted PDF file triggering an integer overflow and excessive memory allocation.

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: None listed

What is CVE-2018-18650?

CVE-2018-18650 is a medium-severity vulnerability in Xpdfreader Xpdf, published on 25 Oct 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 Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.

Weakness: CWE-190

Which versions are affected by CVE-2018-18650?

It affects 1 product.

Products include Xpdfreader Xpdf.

How do I fix CVE-2018-18650?

No fix has been published for CVE-2018-18650 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-18650 being exploited?

There is no known exploitation of CVE-2018-18650 in the wild and no public exploit code.

All Xpdfreader Xpdf vulnerabilities

Sources

Also known as GHSA-6h37-4rh8-55jq, UBUNTU-CVE-2018-18650.