CVE-2019-10207 Null dereference in kernel

Medium 4.7 Published Updated

A local attacker with write permissions to Bluetooth hardware can crash the Linux kernel via a crafted ioctl call.

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-2019-10207?

CVE-2019-10207 is a medium-severity vulnerability in Linux kernel, published on 25 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in the Linux kernel's Bluetooth implementation of UART, all versions kernel 3.x.x before 4.18.0 and kernel 5.x.x. An attacker with local access and write permissions to the Bluetooth hardware could use this flaw to issue a specially crafted ioctl function call and cause the system to crash.

Weakness: CWE-476

Which versions are affected by CVE-2019-10207?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2019-10207?

Apply the vendor's patch.

Is CVE-2019-10207 being exploited?

There is no known exploitation of CVE-2019-10207 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-10207, GHSA-frg3-qcjh-fvr9, UBUNTU-CVE-2019-10207.

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