CVE-2008-5396 Integer overflow in n/a

High 7.2 Published 9 Dec 2008 Updated 7 Aug 2024

Local users in the dialout group can overwrite kernel memory via a missing validation in Zaptel/DAHDI drivers, potentially leading to privilege escalation.

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-2008-5396?

CVE-2008-5396 is a high-severity vulnerability in n/a, published on 9 Dec 2008. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.

Weakness: CWE-189

Which versions are affected by CVE-2008-5396?

It affects 1 product.

Products include Asterisk Zaptel.

How do I fix CVE-2008-5396?

Upgrade to a fixed version.

Is CVE-2008-5396 being exploited?

There is no known exploitation of CVE-2008-5396 in the wild and no public exploit code.

Sources

Also known as GHSA-rprg-vf2r-p2j6.