CVE-2023-3044 Divide-by-zero in Xpdf 4.04 due to very large page size
An attacker can cause a denial of service in Xpdf by providing a PDF with an excessively large page size, triggering a divide-by-zero error.
- 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-2023-3044?
CVE-2023-3044 is a low-severity denial of service vulnerability in Xpdfreader Xpdf, published on 2 Jun 2023. 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 excessively large PDF page size (found in fuzz testing, unlikely in normal PDF files) can result in a divide-by-zero in Xpdf's text extraction code.
This is related to CVE-2022-30524, but the problem here is caused by a very large page size, rather than by a very large character coordinate.
Weakness: CWE-369
Which versions are affected by CVE-2023-3044?
It affects 1 product.
Products include Xpdfreader Xpdf.
How do I fix CVE-2023-3044?
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-2023-3044 being exploited?
There is no known exploitation of CVE-2023-3044 in the wild and no public exploit code.
Other vulnerabilities in Xpdfreader Xpdf
Sources
Also known as GHSA-6w33-g59h-852h, UBUNTU-CVE-2023-3044.