N/A - USN-1101-1

Executive Summary

Summary
Title	Qt vulnerabilities

Informations
Name	USN-1101-1	First vendor Publication	2011-04-01
Vendor	Ubuntu	Last vendor Modification	2011-04-01
Severity (Vendor)	N/A	Revision	N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score	Not Defined	Attack Range	Not Defined
Cvss Impact Score	Not Defined	Attack Complexity	Not Defined
Cvss Expoit Score	Not Defined	Authentication	Not Defined
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 8.04 LTS Ubuntu 9.10 Ubuntu 10.04 LTS Ubuntu 10.10

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:

Ubuntu 8.04 LTS:
libqt4-core 4.3.4-0ubuntu3.2

Ubuntu 9.10:
libqt4-network 4.5.3really4.5.2-0ubuntu1.1

Ubuntu 10.04 LTS:
libqt4-network 4:4.6.2-0ubuntu5.2

Ubuntu 10.10:
libqt4-network 4:4.7.0-0ubuntu4.3

After a standard system upgrade you need to restart your session to effect the necessary changes.

Details follow:

It was discovered that several invalid HTTPS certificates were issued and revoked. An attacker could exploit these to perform a man in the middle attack to view sensitive information or alter encrypted communications. These were placed on the certificate blacklist to prevent their misuse.