CVE-2018-8104 Denial of service in n/a

Medium 5.5 Published 14 Mar 2018 Updated 16 Sep 2024

Attackers can cause a denial of service and application crash in xpdf via a crafted PDF file due to a heap-based buffer over-read.

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-2018-8104?

CVE-2018-8104 is a medium-severity denial of service vulnerability in Xpdfreader Xpdf, published on 14 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

The BufStream::lookChar function in Stream.cc in xpdf 4.00 allows attackers to launch denial of service (heap-based buffer over-read and application crash) via a specific pdf file, as demonstrated by pdftohtml.

Weakness: CWE-125

Which versions are affected by CVE-2018-8104?

It affects 1 product.

Products include Xpdfreader Xpdf.

How do I fix CVE-2018-8104?

No fix has been published for CVE-2018-8104 yet. Limit exposure of the affected software until one is available.

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-2018-8104 being exploited?

There is no known exploitation of CVE-2018-8104 in the wild and no public exploit code.

All Xpdfreader Xpdf vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-8104, GHSA-7g3j-9549-q4ph, UBUNTU-CVE-2018-8104.