CVE-2008-5744 Integer overflow in n/a

High 7.2 Published 26 Dec 2008 Updated 7 Aug 2024

Local users in the dialout group can overwrite kernel memory via an array index error in the Zaptel/DAHDI tor2 driver, 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-2008-5744?

CVE-2008-5744 is a high-severity vulnerability in n/a, published on 26 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 dahdi/tor2.c driver 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 an incorrect tor2 patch for CVE-2008-5396 that uses the wrong variable in a range check against the value of lc->sync.

Weakness: CWE-189

Which versions are affected by CVE-2008-5744?

It affects 1 product.

Products include Asterisk Zaptel.

How do I fix CVE-2008-5744?

Apply the vendor's patch.

Is CVE-2008-5744 being exploited?

There is no known exploitation of CVE-2008-5744 in the wild and no public exploit code.

Sources

Also known as GHSA-86mj-x9g2-c7rh.