CVE-2019-19965 Null dereference in n/a

Medium 4.7 Published Updated

A NULL pointer dereference in the Linux kernel SCSI subsystem allows local attackers to cause a denial of service via a race condition during port disconnection.

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-2019-19965?

CVE-2019-19965 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 25 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel through 5.4.6, there is a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5.

Weakness: CWE-476

Which versions are affected by CVE-2019-19965?

It affects 16 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Netapp 8300 Firmware, Netapp 8700 Firmware, Netapp A400 Firmware and 10 more.

How do I fix CVE-2019-19965?

Apply the vendor's patch.

Is CVE-2019-19965 being exploited?

There is no known exploitation of CVE-2019-19965 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-19965, GHSA-fg2v-2x5h-36qc, UBUNTU-CVE-2019-19965.

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