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Ubuntu 10.04 LTS USN-1651-1 Critical: Kernel Denial Of Service

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Calendar Grey November 30, 2012
Scroller Ubuntu
The Ubuntu Security Announcement USN-1652-1 addresses a severe kernel vulnerability that can lead to unexpected system failures in specific scenarios.
The system could be made to crash under certain conditions.

Summary

The system could be made to crash under certain conditions.

Software Description:

- linux: Linux kernel

Details:

Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois

congestion control algorithm. A local attacker could use this to cause a

denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical kernel issue ubuntu system crash

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-45-386       2.6.32-45.100
  linux-image-2.6.32-45-generic   2.6.32-45.100
  linux-image-2.6.32-45-generic-pae  2.6.32-45.100
  linux-image-2.6.32-45-ia64      2.6.32-45.100
  linux-image-2.6.32-45-lpia      2.6.32-45.100
  linux-image-2.6.32-45-powerpc   2.6.32-45.100
  linux-image-2.6.32-45-powerpc-smp  2.6.32-45.100
  linux-image-2.6.32-45-powerpc64-smp  2.6.32-45.100
  linux-image-2.6.32-45-preempt   2.6.32-45.100
  linux-image-2.6.32-45-server    2.6.32-45.100
  linux-image-2.6.32-45-sparc64   2.6.32-45.100
  linux-image-2.6.32-45-sparc64-smp  2.6.32-45.100
  linux-image-2.6.32-45-versatile  2.6.32-45.100
  linux-image-2.6.32-45-virtual   2.6.32-45.100

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-1651-1

CVE-2012-4565

Severity
critical
Lowest
Low
Medium
High
Critical

November 30, 2012

Topics%20covered

Topics Covered

security advisory denial of service critical kernel issue ubuntu system crash

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.32-45.100

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