USN-3420-1: Linux kernel vulnerabilities
First published: Mon Sep 18 2017(Updated: )
It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-1000251) 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) It was discovered that a buffer overflow existed in the ioctl handling code in the ISDN subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-12762) Pengfei Wang discovered that a race condition existed in the NXP SAA7164 TV Decoder driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-8831)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-4.4.0-1007-kvm | <4.4.0-1007.12 | 4.4.0-1007.12 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-1031-gke | <4.4.0-1031.31 | 4.4.0-1031.31 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-1035-aws | <4.4.0-1035.44 | 4.4.0-1035.44 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-1074-raspi2 | <4.4.0-1074.82 | 4.4.0-1074.82 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-1076-snapdragon | <4.4.0-1076.81 | 4.4.0-1076.81 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-generic | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-generic-lpae | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-lowlatency | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-powerpc-e500mc | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-powerpc-smp | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-powerpc64-emb | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 | |
| All of | ||
| ubuntu/linux-image-4.4.0-96-powerpc64-smp | <4.4.0-96.119 | 4.4.0-96.119 |
| Ubuntu gir1.2-packagekitglib-1.0 | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2017-1000251
- https://ubuntu.com/security/CVE-2017-10663
- https://ubuntu.com/security/CVE-2017-12762
- https://ubuntu.com/security/CVE-2017-8831
- https://ubuntu.com/security/notices/USN-3423-1
- https://ubuntu.com/security/notices/USN-3419-1
- https://ubuntu.com/security/notices/USN-3420-2
- https://ubuntu.com/security/notices/USN-3419-2
- https://ubuntu.com/security/notices/USN-3422-2
- https://ubuntu.com/security/notices/USN-3422-1
- https://ubuntu.com/security/notices/USN-3468-2
- https://ubuntu.com/security/notices/USN-3468-3
- https://ubuntu.com/security/notices/USN-3470-2
- https://ubuntu.com/security/notices/USN-3470-1
- https://ubuntu.com/security/notices/USN-3468-1
- https://ubuntu.com/security/notices/USN-3620-1
- https://ubuntu.com/security/notices/USN-3620-2
- https://ubuntu.com/security/notices/USN-3754-1
- https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1007.12
- https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1031.31
- https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1035.44
- https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1074.82
- https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1076.81
- https://launchpad.net/ubuntu/+source/linux/4.4.0-96.119
- https://ubuntu.com/security/notices/USN-3420-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID for this advisory?
The vulnerability ID for this advisory is CVE-2017-1000251.
What is the affected software for this vulnerability?
The affected software for this vulnerability is the Linux kernel version 4.4.0-1007.12 (kvm) on Ubuntu 16.04.
How can an attacker exploit this vulnerability?
An attacker can exploit this vulnerability by using a buffer overflow in the Bluetooth stack of the Linux kernel to cause a denial of service (system crash).
Is there a remedy available for this vulnerability?
Yes, a remedy is available for this vulnerability. Update to Linux kernel version 4.4.0-1007.12 (kvm) or later.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability on the Ubuntu security advisory page: [CVE-2017-1000251](https://ubuntu.com/security/CVE-2017-1000251).
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