USN-1609-1: Linux kernel (OMAP4) vulnerability

12 October 2012

linux-ti-omap4 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.10


The system could be made to crash under certain conditions.

Software Description

  • linux-ti-omap4 - Linux kernel for OMAP4


A flaw was found in how the Linux kernel’s KVM (Kernel-based Virtual Machine) subsystem handled MSI (Message Signaled Interrupts). A local unprivileged user could exploit this flaw to cause a denial of service or potentially elevate privileges. (CVE-2012-2137)

Mathias Krause discover an error in Linux kernel’s Datagram Congestion Control Protocol (DCCP) Congestion Control Identifier (CCID) use. A local attack could exploit this flaw to cause a denial of service (crash) and potentially escalate privileges if the user can mmap page 0. (CVE-2013-1827)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.10
linux-image-3.0.0-1216-omap4 - 3.0.0-1216.29

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.