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Ubuntu 10.04 LTS USN-1219-1 Moderate: Multiple Kernel Flaws Resolved

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Calendar Grey September 29, 2011
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A variety of kernel vulnerabilities have been fixed in Ubuntu 10.04, addressing both local and remote attack vectors that could result in service disruptions.
Multiple kernel flaws have been fixed.

Summary

Multiple kernel flaws have been fixed.

Software Description:

- linux-lts-backport-maverick: Linux kernel backport from Maverick

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 attack...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote attack system update local attack ubuntu kernel flaws

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.35-30-generic   2.6.35-30.60~lucid1
  linux-image-2.6.35-30-generic-pae  2.6.35-30.60~lucid1
  linux-image-2.6.35-30-server    2.6.35-30.60~lucid1
  linux-image-2.6.35-30-virtual   2.6.35-30.60~lucid1

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

References

https://ubuntu.com/security/notices/USN-1219-1

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

Severity
important
Lowest
Low
Medium
High
Critical

September 29, 2011

Topics%20covered

Topics Covered

security advisory denial of service remote attack system update local attack ubuntu kernel flaws

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35-30.60~lucid1

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