Ubuntu alert USN-3082-2 (linux-ti-omap4)

From:
    	     
 
Steve Beattie <steve.beattie@canonical.com> 
To:
    	     
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
    	     
 
[USN-3082-2] Linux kernel (OMAP4) vulnerability 
Date:
    	     
 
Mon, 19 Sep 2016 12:20:15 -0700
Message-ID:
    	     
 
<20160919192015.GB10414@nxnw.org>
==========================================================================
Ubuntu Security Notice USN-3082-2
September 19, 2016

linux-ti-omap4 vulnerability
==========================================================================

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

- Ubuntu 12.04 LTS

Summary:

The system could be made to run programs as an administrator.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4

Details:

Chiachih Wu, Yuan-Tsung Lo, and Xuxian Jiang discovered that the legacy ABI
for ARM (OABI) had incomplete access checks for epoll_wait(2) and
semtimedop(2). A local attacker could use this to possibly execute
arbitrary code.

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1488-omap4    3.2.0-1488.115

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  http://www.ubuntu.com/usn/usn-3082-2
  http://www.ubuntu.com/usn/usn-3082-1
  CVE-2016-3857

Package Information:
  https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0...

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