USN-3468-2: Linux kernel (HWE) vulnerabilities
First published: Tue Oct 31 2017(Updated: )
USN-3468-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. It was discovered that the KVM subsystem in the Linux kernel did not properly bound guest IRQs. A local attacker in a guest VM could use this to cause a denial of service (host system crash). (CVE-2017-1000252) It was discovered that the Flash-Friendly File System (f2fs) implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-10663) Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. (CVE-2017-10911) It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11176) Dave Chinner discovered that the XFS filesystem did not enforce that the realtime inode flag was settable only on filesystems on a realtime device. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-14340)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-4.10.0-38-generic | <4.10.0-38.42~16.04.1 | 4.10.0-38.42~16.04.1 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.10.0-38-generic-lpae | <4.10.0-38.42~16.04.1 | 4.10.0-38.42~16.04.1 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.10.0-38-lowlatency | <4.10.0-38.42~16.04.1 | 4.10.0-38.42~16.04.1 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2017-1000252
- https://ubuntu.com/security/CVE-2017-10663
- https://ubuntu.com/security/CVE-2017-10911
- https://ubuntu.com/security/CVE-2017-11176
- https://ubuntu.com/security/CVE-2017-14340
- https://ubuntu.com/security/notices/USN-3468-3
- https://ubuntu.com/security/notices/USN-3468-1
- https://ubuntu.com/security/notices/USN-3420-1
- https://ubuntu.com/security/notices/USN-3420-2
- https://ubuntu.com/security/notices/USN-3470-2
- https://ubuntu.com/security/notices/USN-3470-1
- https://ubuntu.com/security/notices/USN-3414-1
- https://ubuntu.com/security/notices/USN-3469-1
- https://ubuntu.com/security/notices/USN-3469-2
- https://ubuntu.com/security/notices/USN-3405-1
- https://ubuntu.com/security/notices/USN-3405-2
- https://launchpad.net/ubuntu/+source/linux-hwe/4.10.0-38.42~16.04.1
- https://ubuntu.com/security/notices/USN-3468-2 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-3468-2?
The severity of USN-3468-2 is moderate.
What is the affected software for USN-3468-2?
The affected software for USN-3468-2 is Ubuntu 16.04 LTS with Linux kernel version 4.10.0-38.42~16.04.1.
What is the remedy for USN-3468-2?
The remedy for USN-3468-2 is to update to Linux kernel version 4.10.0-38.42~16.04.1.
What is the Common Weakness Enumeration (CWE) for USN-3468-2?
The Common Weakness Enumeration (CWE) for USN-3468-2 is CWE-416.
Where can I find more information about USN-3468-2?
You can find more information about USN-3468-2 on the Ubuntu website.
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