Security hole in Klock

    Date08 Dec 1999
    CategorySuSE
    3449
    Posted ByLinuxSecurity Advisories
    The KDE screensaver klock includes a bug, which allows to bypass the password authentication. While klock waits for kcheckpass to verify the password a timer is triggered and the dialog box is deleted. After kcheckpass completes klock crashs.
    ______________________________________________________________________________
    
                            SuSE Security Announcement
    
            Package:  kbase 1.1 (klock, the KDE screensaver)
            Date:     Wed Jun 30 14:32:05 CEST 1999
            Affected: all Unix operating systems using kbase 1.1
    
    ______________________________________________________________________________
    
    A security hole was discovered in the package mentioned above.
    Please update as soon as possible or disable the service if you are using
    this software on your SuSE Linux installation(s).
    
    Other Linux distributions or operating systems might be affected as
    well, please contact your vendor for information about this issue.
    
    Please note, that that we provide this information on as "as-is" basis only.
    There is no warranty whatsoever and no liability for any direct, indirect or
    incidental damage arising from this information or the installation of
    the update package.
    
    ______________________________________________________________________________
    
    1. Problem Description
    
        The KDE screensaver klock includes a bug, which allows to bypass
        the password authentication.
        While klock waits for kcheckpass to verify the password a timer is
        triggered and the dialog box is deleted. After kcheckpass completes
        klock crashs.
    
    2. Impact
    
        By typing in a specific key sequence everyone could bypass the password
        athentication of klock.
    
    3. Solution
    
        Install the updated package, which is available from our
        ftp server.
    
    ______________________________________________________________________________
    
    Here is the md5 checksum of the fixed package, please verify these
    before installing the new package:
    
    85bbdeac8430918d52f9bbe93ee074f9  kbase-1.1.1-15.i386.rpm
    
    ______________________________________________________________________________
    
    You will find the update on our ftp-Server:
    
      ftp://ftp.suse.com/pub/suse/i386/update/6.1/kde2/kbase-1.1.1-15.i386.rpm
    
    Webpage for patches:
            http://www.suse.de/patches/index.html
    
    or try the following web pages for a list of mirrors:
    
            http://www.suse.de/ftp.html
            http://www.suse.com/ftp_new.html
    
    ______________________________________________________________________________
    
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