Ubuntu Security Notices
USN-2235-1

USN-2235-1: Linux kernel vulnerabilities

Publication date

5 June 2014

Overview

Several security issues were fixed in the kernel.

Releases

12.04

Packages

linux - Linux kernel

Details

Pinkie Pie discovered a flaw in the Linux kernel's futex subsystem. An
unprivileged local user could exploit this flaw to cause a denial of
service (system crash) or gain administrative privileges. (CVE-2014-3153)

A flaw was discovered in the vhost-net subsystem of the Linux kernel. Guest
OS users could exploit this flaw to cause a denial of service (host OS
crash). (CVE-2014-0055)

Sasha Levin reported a bug in the Linux kernel's virtual memory management
subsystem. An unprivileged local user could exploit this flaw to cause a
denial of service (system crash). (CVE-2014-3122)

A flaw was discovered in the vhost-net subsystem of the Linux kernel. Guest
OS users could exploit this flaw to cause a denial of service (host OS
crash). (CVE-2014-0055)

Sasha Levin reported a bug in the Linux kernel's virtual memory management
subsystem. An unprivileged local user could exploit this flaw to cause a
denial of service (system crash). (CVE-2014-3122)

Update instructions

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

Learn more about how to get the fixes.

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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.

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

Ubuntu Release	Package Version
12.04 precise	linux-image-3.2.0-64-omap – 3.2.0-64.97
	linux-image-3.2.0-64-powerpc-smp – 3.2.0-64.97
	linux-image-3.2.0-64-powerpc64-smp – 3.2.0-64.97
	linux-image-3.2.0-64-highbank – 3.2.0-64.97
	linux-image-3.2.0-64-generic – 3.2.0-64.97
	linux-image-3.2.0-64-virtual – 3.2.0-64.97
	linux-image-3.2.0-64-generic-pae – 3.2.0-64.97

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References

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