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Ubuntu 10.04 LTS: USN-1248-1 Moderate KDE-Libs SSL Issue

ubuntu
Calendar Grey October 25, 2011
Scroller Ubuntu
An issue in KDE-Libs permits the misrepresentation of certificates, jeopardizing user confidence and compromising system security across specific Ubuntu releases.
KDE-Libs could improperly display fraudulent security certificates.

Summary

KDE-Libs could improperly display fraudulent security certificates.

Software Description:

- kde4libs: KDE 4 core applications and libraries

Details:

Tim Brown discovered that KSSL in KDE-Libs did not properly perform input

validation when displaying the common name (CN) for an SSL certificate. An

attacker could exploit this to spoof the common name which could be used in

an attack to trick the user into accepting a fraudulent certificate. This

issue only affected Ubuntu 10.04 LTS and Ubuntu 10.10. (CVE-2011-3365)

It was discovered that KIO in KDE-Libs did not properly perform input

validation during proxy authentication. An attacker could exploit this to

modify displaying of the realm and proxy URL.

Topics%20covered

Topics Covered

security advisory moderate Ubuntu input validation SSL certificate KDE-Libs

Update Instructions

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

Ubuntu 11.04:
  libkio5                         4:4.6.5-0ubuntu1.1

Ubuntu 10.10:
  libkio5                         4:4.5.5-0ubuntu2.1

Ubuntu 10.04 LTS:
  kdelibs5                        4:4.4.5-0ubuntu1.2

After a standard system update you need to restart any applications that
use KSSL and KIO, such as Konqueror and Rekong, to make all the necessary
changes.

References

CVE-2011-3365

Severity
important
Lowest
Low
Medium
High
Critical

October 25, 2011

Topics%20covered

Topics Covered

security advisory moderate Ubuntu input validation SSL certificate KDE-Libs

Package Information

https://launchpad.net/ubuntu/+source/kde4libs/4:4.6.5-0ubuntu1.1
https://launchpad.net/ubuntu/+source/kde4libs/4:4.5.5-0ubuntu2.1
https://launchpad.net/ubuntu/+source/kde4libs/4:4.4.5-0ubuntu1.2

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