USN-3420-1: Linux kernel vulnerabilities
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
Event History
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).