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Ubuntu Security Notice USN-1660-1

Ubuntu Security Notice USN-1660-1
Posted Dec 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1660-1 - Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.

tags | advisory, remote, kernel
systems | linux, ubuntu
advisories | CVE-2012-4444
MD5 | 2385fb006985abf08eab5fd0b65b0d13

Ubuntu Security Notice USN-1660-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1660-1
December 11, 2012

linux vulnerability
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 8.04 LTS

Summary:

The system's firewall could be bypassed by a remote attacker.

Software Description:
- linux: Linux kernel

Details:

Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping
fragments in ipv6. A remote attacker could exploit this flaw to bypass
firewalls and initial new network connections that should have been blocked
by the firewall.

Update instructions:

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

Ubuntu 8.04 LTS:
linux-image-2.6.24-32-386 2.6.24-32.107
linux-image-2.6.24-32-generic 2.6.24-32.107
linux-image-2.6.24-32-hppa32 2.6.24-32.107
linux-image-2.6.24-32-hppa64 2.6.24-32.107
linux-image-2.6.24-32-itanium 2.6.24-32.107
linux-image-2.6.24-32-lpia 2.6.24-32.107
linux-image-2.6.24-32-lpiacompat 2.6.24-32.107
linux-image-2.6.24-32-mckinley 2.6.24-32.107
linux-image-2.6.24-32-openvz 2.6.24-32.107
linux-image-2.6.24-32-powerpc 2.6.24-32.107
linux-image-2.6.24-32-powerpc-smp 2.6.24-32.107
linux-image-2.6.24-32-powerpc64-smp 2.6.24-32.107
linux-image-2.6.24-32-rt 2.6.24-32.107
linux-image-2.6.24-32-server 2.6.24-32.107
linux-image-2.6.24-32-sparc64 2.6.24-32.107
linux-image-2.6.24-32-sparc64-smp 2.6.24-32.107
linux-image-2.6.24-32-virtual 2.6.24-32.107
linux-image-2.6.24-32-xen 2.6.24-32.107

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

References:
http://www.ubuntu.com/usn/usn-1660-1
CVE-2012-4444

Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.24-32.107

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