CVE-2023-6299 Apryse iText Reference Table PdfDocument.java memory leak

Medium 4.3 Published 26 Nov 2023 Updated 2 Aug 2024

A remote attacker can cause a memory leak in the Apryse iText library, potentially leading to 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: None listed

What is CVE-2023-6299?

CVE-2023-6299 is a medium-severity denial of service vulnerability in Apryse iText, published on 26 Nov 2023. 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

A vulnerability, which was classified as problematic, has been found in Apryse iText 8.0.1. This issue affects some unknown processing of the file PdfDocument.java of the component Reference Table Handler. The manipulation leads to memory leak. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 8.0.2 is able to address this issue. It is recommended to upgrade the affected component. The identifier VDB-246125 was assigned to this vulnerability. NOTE: The vendor was contacted early about this vulnerability. The fix was introduced in the iText 8.0.2 release on October 25th 2023, prior to the disclosure.

Weakness: CWE-401

Which versions are affected by CVE-2023-6299?

It affects 1 product.

Products include Itextpdf Itext.

How do I fix CVE-2023-6299?

No fix has been published for CVE-2023-6299 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-2023-6299 being exploited?

There is no known exploitation of CVE-2023-6299 in the wild and no public exploit code.

Sources

Also known as GHSA-j3q7-2r25-q5j7, UBUNTU-CVE-2023-6299.