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Ubuntu Security Notice USN-1844-1

Ubuntu Security Notice USN-1844-1
Posted May 31, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1844-1 - 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.

tags | advisory, remote, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-2850
MD5 | 5bd6e531cc80e9eb04851217d4fadd4c

Ubuntu Security Notice USN-1844-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1844-1
May 30, 2013

linux 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: Linux kernel

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-3.2.0-45-generic 3.2.0-45.70
linux-image-3.2.0-45-generic-pae 3.2.0-45.70
linux-image-3.2.0-45-highbank 3.2.0-45.70
linux-image-3.2.0-45-omap 3.2.0-45.70
linux-image-3.2.0-45-powerpc-smp 3.2.0-45.70
linux-image-3.2.0-45-powerpc64-smp 3.2.0-45.70
linux-image-3.2.0-45-virtual 3.2.0-45.70

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:
http://www.ubuntu.com/usn/usn-1844-1
CVE-2013-2850

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.2.0-45.70

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