Home / mailings [USN-3251-1] Linux kernel vulnerability
Posted on 30 March 2017
Ubuntu Security--===============3745161871476019349==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature"; boundary="B0nZA57HJSoPbsHY"
Content-Disposition: inline
--B0nZA57HJSoPbsHY
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
==========================================================================
Ubuntu Security Notice USN-3251-1
March 29, 2017
linux, linux-raspi2 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10
Summary:
The system could be made to crash or run programs as an administrator.
Software Description:
- linux: Linux kernel
- linux-raspi2: Linux kernel for Raspberry Pi 2
Details:
It was discovered that the xfrm framework for transforming packets in the
Linux kernel did not properly validate data received from user space. A
local attacker could use this to cause a denial of service (system crash)
or execute arbitrary code with administrative privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.10:
linux-image-4.8.0-1032-raspi2 4.8.0-1032.35
linux-image-4.8.0-45-generic 4.8.0-45.48
linux-image-4.8.0-45-generic-lpae 4.8.0-45.48
linux-image-4.8.0-45-lowlatency 4.8.0-45.48
linux-image-4.8.0-45-powerpc-e500mc 4.8.0-45.48
linux-image-4.8.0-45-powerpc-smp 4.8.0-45.48
linux-image-generic 4.8.0.45.57
linux-image-generic-lpae 4.8.0.45.57
linux-image-lowlatency 4.8.0.45.57
linux-image-powerpc-e500mc 4.8.0.45.57
linux-image-powerpc-smp 4.8.0.45.57
linux-image-raspi2 4.8.0.1032.36
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-3251-1
CVE-2017-7184
Package Information:
https://launchpad.net/ubuntu/+source/linux/4.8.0-45.48
https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1032.35
