- Vulnerability/
- USN-3488-1
USN-3488-1: Linux kernel (Azure) vulnerability
First published: Tue Nov 21 2017(Updated: )
It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-4.11.0-1015-azure | <4.11.0-1015.15 | 4.11.0-1015.15 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2017-12188
- https://ubuntu.com/security/notices/USN-3487-1
- https://ubuntu.com/security/notices/USN-3484-2
- https://ubuntu.com/security/notices/USN-3484-3
- https://ubuntu.com/security/notices/USN-3484-1
- https://launchpad.net/ubuntu/+source/linux-azure/4.11.0-1015.15
- https://ubuntu.com/security/notices/USN-3488-1 (Advisory)
Frequently Asked Questions
What is the vulnerability in USN-3488-1?
The vulnerability is a flaw in the KVM subsystem in the Linux kernel that allows a local attacker in a guest VM to cause a denial of service or execute arbitrary code in the host OS.
How does the vulnerability in USN-3488-1 affect the system?
The vulnerability can result in a crash of the host OS or allow an attacker to execute arbitrary code.
Which versions of Ubuntu are affected by the vulnerability in USN-3488-1?
The vulnerability affects Ubuntu 16.04 with Linux kernel version 4.11.0-1015-azure.
What is the remedy for the vulnerability in USN-3488-1?
To fix the vulnerability, update the linux-image-4.11.0-1015-azure package to version 4.11.0-1015.15 or later.
Where can I find more information about USN-3488-1?
More information about USN-3488-1 can be found on the Ubuntu Security Notices website.
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