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Ubuntu 10.10 High: USN-1227-1 Linux Kernel Denial of Service Threats

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Calendar Grey October 11, 2011
Scroller Ubuntu
Various kernel vulnerabilities addressed in Ubuntu 10.10, improving defenses against local and remote attacks.
Multiple kernel flaws have been fixed.

Summary

Multiple kernel flaws have been fixed.

Software Description:

- linux: Linux kernel

Details:

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)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not

correctly check the origin of mount points. A local attacker could exploit

this to trick the system into unmounting arbitrary mount points, leading to

a denial of service. (CVE-2011-1833)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not

correctly validate certain requests. A local attacker could exploit this to

consume CPU resourc...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote attack patch system update ubuntu linux kernel

Update Instructions

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

Ubuntu 10.10:
  linux-image-2.6.35-30-generic   2.6.35-30.60
  linux-image-2.6.35-30-generic-pae  2.6.35-30.60
  linux-image-2.6.35-30-omap      2.6.35-30.60
  linux-image-2.6.35-30-powerpc   2.6.35-30.60
  linux-image-2.6.35-30-powerpc-smp  2.6.35-30.60
  linux-image-2.6.35-30-powerpc64-smp  2.6.35-30.60
  linux-image-2.6.35-30-server    2.6.35-30.60
  linux-image-2.6.35-30-versatile  2.6.35-30.60
  linux-image-2.6.35-30-virtual   2.6.35-30.60

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

References

https://ubuntu.com/security/notices/USN-1227-1

CVE-2011-1576, CVE-2011-1776, CVE-2011-1833, CVE-2011-2213,

CVE-2011-2497, CVE-2011-2699, CVE-2011-2700, CVE-2011-2723,

CVE-2011-2918, CVE-2011-2928, CVE-2011-3191

October 11, 2011

Topics%20covered

Topics Covered

security advisory denial of service remote attack patch system update ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.35-30.60

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