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Ubuntu 10.04 LTS: USN-1241-1 Critical: Various DoS Issues

ubuntu
Calendar Grey October 25, 2011
Scroller Ubuntu
Address numerous significant vulnerabilities within the Linux kernel that threaten Ubuntu 10.04 LTS users, thereby safeguarding against possible threats.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-fsl-imx51: Linux kernel for IMX51

Details:

It was discovered that the Stream Control Transmission Protocol (SCTP)

implementation incorrectly calculated lengths. If the net.sctp.addip_enable

variable was turned on, a remote attacker could send specially crafted

traffic to crash the system. (CVE-2011-1573)

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN

packets. On some systems, a remote attacker could send specially crafted

traffic to crash the system, leading to a denial of service.

(CVE-2011-1576)

Timo Warns discovered that the EFI GUID partition table was not correctly

parsed. A physically local attacker that could insert mountable devices

could exploit this to crash the system or possibly gain root privileges.

(CVE-2011-1776)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not

correctly validate certain requests. A local attacker cou...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote exploit ubuntu linux kernel

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.31-611-imx51    2.6.31-611.29

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-1241-1

CVE-2011-1573, CVE-2011-1576, CVE-2011-1776, CVE-2011-2213,

CVE-2011-2494, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497,

CVE-2011-2517, CVE-2011-2525, CVE-2011-2695, CVE-2011-2723,

CVE-2011-2905, CVE-2011-2909, CVE-2011-2928, CVE-2011-3188,

CVE-2011-3191, CVE-2011-3363

Severity
critical
Lowest
Low
Medium
High
Critical

October 25, 2011

Topics%20covered

Topics Covered

security advisory denial of service remote exploit ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-fsl-imx51/2.6.31-611.29

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