CVE-2019-16234 Null dereference in n/a

Medium 4.7 Published Updated

A missing check for workqueue allocation in the Intel iwlwifi driver causes a NULL pointer dereference, leading to a system crash.

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-2019-16234?

CVE-2019-16234 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 11 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

drivers/net/wireless/intel/iwlwifi/pcie/trans.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.

Weakness: CWE-476

Which versions are affected by CVE-2019-16234?

It affects 3 products.

Products include Canonical Ubuntu Linux, Linux kernel, Opensuse Leap.

How do I fix CVE-2019-16234?

Apply the vendor's patch.

Is CVE-2019-16234 being exploited?

There is no known exploitation of CVE-2019-16234 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-16234, GHSA-p97g-2q23-rv32, ROOT-OS-DEBIAN-12-CVE-2019-16234, ROOT-OS-DEBIAN-13-CVE-2019-16234, UBUNTU-CVE-2019-16234.

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