Fwd: [kde-announce] [KDE Security Advisory] KDM passwordless login vulnerability

From: Richard Hartmann <richih.mailinglist(at)gmail.com> Date: Wed Sep 19 2007 - 12:23:57 EDT · This archive was generated by hypermail 2.1.8 : Sun Oct 07 2007 - 07:58:19 EDT

·       KDM as shipped with KDE 3.3.0 up to including 3.5.7. KDE 3.2.x and
·       older and newer versions than KDE 3.5.7 are not affected.·

·       KDM can be tricked into performing a password-less login even for
·       accounts with a password set under certain circumstances, namely
        autologin to be configured and "shutdown with password" enabled.

        This vulnerability was discovered and reported by Kees Huijgen.

·       KDM might allow a normal user to login as another user or even
·       root without properly supplying login credentials.

        Source code patches have been made available which fix these
        vulnerabilities. Contact your OS vendor / binary package provider
        for information about how to obtain updated binary packages.

        A patch for KDE 3.5.0 - KDE 3.5.7 is available from

ftp://ftp.kde.org/pub/kde/security_patches :

        ee6c57046902c5b5a32a4699558baafc  post-3.5.7-kdebase-kdm.diff

        A patch for KDE 3.3.0 - KDE 3.4.2 is available from

ftp://ftp.kde.org/pub/kde/security_patches :

        ad7333a336bdbaef7fae5e74cd12119b  post-3.4.2-kdebase-kdm.diff