USN-4344-1: Linux kernel vulnerabilities
First published: Tue Apr 28 2020(Updated: )
It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234) It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19051) Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768) It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942) It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648) Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (soft lockup). (CVE-2020-8992) Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-5.0.0-1035-gke | <5.0.0-1035.36 | 5.0.0-1035.36 |
| Ubuntu Linux | =18.04 | |
| All of | ||
| ubuntu/linux-image-5.0.0-1050-oem-osp1 | <5.0.0-1050.55 | 5.0.0-1050.55 |
| Ubuntu Linux | =18.04 | |
| All of | ||
| ubuntu/linux-image-gke-5.0 | <5.0.0.1035.23 | 5.0.0.1035.23 |
| Ubuntu Linux | =18.04 | |
| All of | ||
| ubuntu/linux-image-oem-osp1 | <5.0.0.1050.53 | 5.0.0.1050.53 |
| Ubuntu Linux | =18.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2019-16234
- https://ubuntu.com/security/CVE-2019-19051
- https://ubuntu.com/security/CVE-2019-19768
- https://ubuntu.com/security/CVE-2020-10942
- https://ubuntu.com/security/CVE-2020-8648
- https://ubuntu.com/security/CVE-2020-8992
- https://ubuntu.com/security/CVE-2020-9383
- https://ubuntu.com/security/notices/USN-4345-1
- https://ubuntu.com/security/notices/USN-4342-1
- https://ubuntu.com/security/notices/USN-4346-1
- https://ubuntu.com/security/notices/USN-4225-1
- https://ubuntu.com/security/notices/USN-4225-2
- https://ubuntu.com/security/notices/USN-4286-1
- https://ubuntu.com/security/notices/USN-4286-2
- https://ubuntu.com/security/notices/USN-4302-1
- https://ubuntu.com/security/notices/USN-4364-1
- https://ubuntu.com/security/notices/LSN-0066-1
- https://ubuntu.com/security/notices/LSN-0068-1
- https://ubuntu.com/security/notices/USN-4324-1
- https://ubuntu.com/security/notices/USN-4318-1
- https://ubuntu.com/security/notices/USN-4419-1
- https://launchpad.net/ubuntu/+source/linux-signed-gke-5.0/5.0.0-1035.36
- https://launchpad.net/ubuntu/+source/linux-signed-oem-osp1/5.0.0-1050.55
- https://launchpad.net/ubuntu/+source/linux-meta-gke-5.0/5.0.0.1035.23
- https://launchpad.net/ubuntu/+source/linux-meta-oem-osp1/5.0.0.1050.53
- https://ubuntu.com/security/notices/USN-4344-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2019-16234?
The severity of CVE-2019-16234 is medium.
How can a local attacker exploit CVE-2019-16234?
A local attacker can exploit CVE-2019-16234 to cause a denial of service (system crash).
Which versions of the Linux kernel are affected by CVE-2019-16234?
The affected versions of the Linux kernel are 5.0.0-1035.36, 5.0.0-1050.55, 5.0.0.1035.23, and 5.0.0.1050.53.
How can I fix the vulnerability in the Linux kernel?
To fix the vulnerability in the Linux kernel, update to version 5.0.0-1035.36, 5.0.0-1050.55, 5.0.0.1035.23, or 5.0.0.1050.53.
Where can I find more information about CVE-2019-16234?
More information about CVE-2019-16234 can be found at the following link: https://ubuntu.com/security/CVE-2019-16234
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