[USN-1556-1] Linux kernel (EC2) vulnerabilities

John Johansen john.johansen at canonical.com
Thu Sep 6 23:49:08 UTC 2012


==========================================================================
Ubuntu Security Notice USN-1556-1
September 06, 2012

linux-ec2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

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

Details:

Chen Haogang discovered an integer overflow that could result in memory
corruption. A local unprivileged user could use this to crash the system.
(CVE-2012-0044)

A flaw was found in the Linux kernel's Reliable Datagram Sockets (RDS)
protocol implementation. A local, unprivileged user could use this flaw to
cause a denial of service. (CVE-2012-2372)

Some errors where discovered in the Linux kernel's UDF file system, which
is used to mount some CD-ROMs and DVDs. An unprivileged local user could
use these flaws to crash the system. (CVE-2012-3400)

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-347-ec2      2.6.32-347.53

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

References:
  http://www.ubuntu.com/usn/usn-1556-1
  CVE-2012-0044, CVE-2012-2372, CVE-2012-3400

Package Information:
  https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-347.53

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