CVE-2006-3740 Integer overflow in n/a

High 7.2 Published 13 Sep 2006 Updated 7 Aug 2024

Local attackers can execute arbitrary code via crafted font data exploiting an integer overflow in the X.Org X server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2006-3740?

CVE-2006-3740 is a high-severity vulnerability in n/a, published on 13 Sep 2006. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.

Which versions are affected by CVE-2006-3740?

It affects 2 products.

Products include X.org X.org, Xfree86 Project Xfree86 X.

How do I fix CVE-2006-3740?

Apply the vendor's patch.

Is CVE-2006-3740 being exploited?

There is no known exploitation of CVE-2006-3740 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2006-3740, GHSA-gpr2-3wwv-wvmr.