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Ubuntu 12.04 LTS USN-1849-1 Critical: iSCSI Denial of Service Exploit

Ubuntu Large Esm H500
The system could be made to crash or run programs as an administrator if it received specially crafted network traffic.
=========================================================================Ubuntu Security Notice USN-1849-1
May 31, 2013

linux-lts-raring vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

The system could be made to crash or run programs as an administrator if
it received specially crafted network traffic.

Software Description:
- linux-lts-raring: Linux hardware enablement kernel from Raring

Details:

Kees Cook discovered a flaw in the Linux kernel's iSCSI subsystem. A remote
unauthenticated attacker could exploit this flaw to cause a denial of
service (system crash) or potentially gain administrative privileges.

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.8.0-23-generic    3.8.0-23.34~precise1

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-1849-1
  CVE-2013-2094

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lts-raring/3.8.0-23.34~precise1


Ubuntu 12.04 LTS USN-1849-1 Critical: iSCSI Denial of Service Exploit

ubuntu
Calendar Grey May 31, 2013
Dist Ubuntu Esm H88
A vulnerability in Ubuntu 12.04 LTS could lead to system failures due to malicious network packets unless patched. Take immediate action!
The system could be made to crash or run programs as an administrator if it received specially crafted network traffic.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.8.0-23-generic 3.8.0-23.34~precise1 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-1849-1

CVE-2013-2094

Severity
critical
Lowest
Low
Medium
High
Critical

May 31, 2013

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-raring/3.8.0-23.34~precise1

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