Ubuntu 1248-1: KDE-Libs vulnerability

    Date25 Oct 2011
    Posted ByLinuxSecurity Advisories
    KDE-Libs could improperly display fraudulent security certificates.
    Ubuntu Security Notice USN-1248-1
    October 25, 2011
    kde4libs vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    KDE-Libs could improperly display fraudulent security certificates.
    Software Description:
    - kde4libs: KDE 4 core applications and libraries
    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.
    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
    Package Information:

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