|Name||USN-803-2||First vendor Publication||2010-01-27|
|Vendor||Ubuntu||Last vendor Modification||2010-01-27|
Security-Database Scoring CVSS v2
|Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)|
|Cvss Base Score||10||Attack Range||Network|
|Cvss Impact Score||10||Attack Complexity||Low|
|Cvss Expoit Score||10||Authentication||None Required|
|Calculate full CVSS 2.0 Vectors scores|
A security issue affects the following Ubuntu releases:
Ubuntu 8.10 Ubuntu 9.04 Ubuntu 9.10
This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the following package versions:
After a standard system upgrade you need to restart any DHCP network connections utilizing dhclient3 to effect the necessary changes.
USN-803-1 fixed a vulnerability in Dhcp. Due to an error, the patch to fix the vulnerability was not properly applied on Ubuntu 8.10 and higher. Even with the patch improperly applied, the default compiler options reduced the vulnerability to a denial of service. Additionally, in Ubuntu 9.04 and higher, users were also protected by the AppArmor dhclient3 profile. This update fixes the problem.
Original advisory details:
It was discovered that the DHCP client as included in dhcp3 did not verify
|Url : http://www.ubuntu.com/usn/USN-803-2|