An updated Linux kernel has been released for Ubuntu Linux 14.04 LTS
=========================================================================Linux Kernel Update for Ubuntu Linux 14.04 LTS
Ubuntu Security Notice USN-3594-1
March 09, 2018
linux vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
The system could be made to expose sensitive information.
Software Description:
- linux: Linux kernel
Details:
USN-3542-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the
amd64 architecture in Ubuntu 14.04 LTS. This update provides the
compiler-based retpoline kernel mitigation for the amd64 and i386
architectures. Original advisory details:
Jann Horn discovered that microprocessors utilizing speculative execution
and branch prediction may allow unauthorized memory reads via sidechannel
attacks. This flaw is known as Spectre. A local attacker could use this to
expose sensitive information, including kernel memory. (CVE-2017-5715)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.13.0-143-generic 3.13.0-143.192
linux-image-3.13.0-143-generic-lpae 3.13.0-143.192
linux-image-3.13.0-143-lowlatency 3.13.0-143.192
linux-image-generic 3.13.0.143.153
linux-image-generic-lpae 3.13.0.143.153
linux-image-lowlatency 3.13.0.143.153
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:
https://usn.ubuntu.com/usn/usn-3594-1
CVE-2017-5715, https://usn.ubuntu.com/3542-1/
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-143.192
