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[USN-1469-1] Linux kernel (EC2) vulnerability

Posted on 12 June 2012
Ubuntu Security

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Ubuntu Security Notice USN-1469-1
June 12, 2012

linux-ec2 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

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

Software Description:
- linux-ec2: Linux kernel for EC2

Details:

Schacher Raindel discovered a flaw in the Linux kernel's memory handling
when hugetlb is enabled. An unprivileged local attacker could exploit thi=
s
flaw to cause a denial of service and potentially gain higher privileges.=


Update instructions:

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-345-ec2 2.6.32-345.49

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

References:
http://www.ubuntu.com/usn/usn-1469-1
CVE-2012-2133

Package Information:
https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-345.49


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