CVE-2019-16233 Null dereference in n/a
A missing check on workqueue allocation in the Linux kernel SCSI driver allows attackers to cause a denial of service via null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-16233?
CVE-2019-16233 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/scsi/qla2xxx/qla_os.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-2019-16233?
It affects 4 products.
Products include Canonical Ubuntu Linux, Linux kernel, Opensuse Leap, Redhat Enterprise Linux.
How do I fix CVE-2019-16233?
Apply the vendor's patch.
Is CVE-2019-16233 being exploited?
There is no known exploitation of CVE-2019-16233 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2019-16233, GHSA-p77w-2m7c-p3r6, ROOT-OS-DEBIAN-11-CVE-2019-16233, ROOT-OS-DEBIAN-12-CVE-2019-16233, ROOT-OS-DEBIAN-13-CVE-2019-16233, UBUNTU-CVE-2019-16233.