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Ubuntu 10.04 LTS USN-2037-1: Critical EC2 Kernel Integrity Threats

ubuntu
Calendar Grey December 3, 2013
Scroller Ubuntu
Urgent Security Alert for Ubuntu 10.04 LTS regarding Linux kernel flaws on EC2 instances; patches released.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ec2: Linux kernel for EC2

Details:

A flaw was discovered in the Linux kernel's KVM (kernel virtual machine).

An administrative user in the guest OS could leverage this flaw to cause a

denial of service in the host OS. (CVE-2012-2121)

Multiple integer overflow flaws where discovered in the Alchemy LCD frame-buffer drivers in the Linux kernel. An unprivileged local user could

exploit this flaw to gain administrative privileges. (CVE-2013-4511)

Topics%20covered

Topics Covered

security advisory denial of service kernel update ubuntu linux kernel administrative privileges

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-359-ec2      2.6.32-359.72

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. 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.

References

https://ubuntu.com/security/notices/USN-2037-1

CVE-2012-2121, CVE-2013-4511

Severity
critical
Lowest
Low
Medium
High
Critical

December 03, 2013

Topics%20covered

Topics Covered

security advisory denial of service kernel update ubuntu linux kernel administrative privileges

Package Information

https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-359.72

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