CVE-2019-15223: Null Pointer Dereference
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the sound/usb/line6/driver.c driver.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.94-1Fixed in 6.12.101-1Fixed in 7.1.8-1Fixed in 7.1.8-2 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.1.8 - Compensating control
Mitigate by preventing untrusted USB devices from connecting (e.g., block/disable USB access or restrict which USB devices can be used) until the kernel is upgraded.
Event History
Frequently Asked Questions
What is CVE-2019-15223?
CVE-2019-15223 is a vulnerability in the Linux kernel that allows for a NULL pointer dereference caused by a malicious USB device.
How severe is CVE-2019-15223?
CVE-2019-15223 is a critical vulnerability with a severity rating of high.
Which versions of the Linux kernel are affected by CVE-2019-15223?
Versions of the Linux kernel before 5.1.8 are affected by CVE-2019-15223.
How can I fix CVE-2019-15223?
To fix CVE-2019-15223, update your Linux kernel to version 5.1.8 or later.
Where can I find more information about CVE-2019-15223?
More information about CVE-2019-15223 can be found in the references provided: [Link 1](https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8), [Link 2](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b074ab7fc0d575247b9cc9f93bb7e007ca38840), [Link 3](https://syzkaller.appspot.com/bug?id=0c1e517c657d3de2361cb0cc2d3a8663c25039a7).