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Ubuntu 12.04 LTS: USN-1628-1 Critical: Qt Network Exposure Flaw

ubuntu
Calendar Grey November 8, 2012
Scroller Ubuntu
Qt applications running on Ubuntu are at risk of revealing confidential data due to a TLS vulnerability. It is important to install an update to address this security issue.
Qt applications could be made to expose sensitive information overthe network.

Summary

Qt applications could be made to expose sensitive information over

the network.

Software Description:

- qt4-x11: Qt 4 libraries

Details:

Juliano Rizzo and Thai Duong discovered a flaw in the Transport Layer

Security (TLS) protocol when it is used with data compression. If an

attacker were able to perform a man-in-the-middle attack, this flaw

could be exploited to view sensitive information. This update disables

TLS data compression in Qt by default.

Topics%20covered

Topics Covered

security advisory update instructions critical severity ubuntu qt network exposure tls flaw

Update Instructions

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

Ubuntu 12.04 LTS:
  libqt4-network                  4:4.8.1-0ubuntu4.3

Ubuntu 11.10:
  libqt4-network                  4:4.7.4-0ubuntu8.2

Ubuntu 10.04 LTS:
  libqt4-network                  4:4.6.2-0ubuntu5.5

After a standard system update you need to restart any KDE sessions or
applications linked against Qt to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1628-1

CVE-2012-4929

Severity
critical
Lowest
Low
Medium
High
Critical

November 08, 2012

Topics%20covered

Topics Covered

security advisory update instructions critical severity ubuntu qt network exposure tls flaw

Package Information

https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.1-0ubuntu4.3
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.7.4-0ubuntu8.2
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.6.2-0ubuntu5.5

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