[USN-3207-2] Linux kernel (Trusty HWE) vulnerabilities

Severity High

CVEs 3

Several security issues were fixed in the kernel.

USN-3207-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 LTS.

It was discovered that a use-after-free vulnerability existed in the block
device layer of the Linux kernel. A local attacker could use this to cause
a denial of service (system crash) or possibly gain administrative
privileges. (CVE-2016-7910)

Dmitry Vyukov discovered a use-after-free vulnerability in the
sys_ioprio_get() function in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash) or possibly gain
administrative privileges. (CVE-2016-7911)

Andrey Konovalov discovered a use-after-free vulnerability in the DCCP
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly gain administrative
privileges. (CVE-2017-6074)

ID

USN-3207-2

Severity

high

Severity from

CVE-2016-7910

URL

https://ubuntu.com/security/notices/USN-3207-2

Published