** Also affects: karchive (Ubuntu Xenial) Importance: Undecided Status: New
-- You received this bug notification because you are a member of नेपाली भाषा समायोजकहरुको समूह, which is subscribed to Xenial. Matching subscriptions: Ubuntu 16.04 Bugs https://bugs.launchpad.net/bugs/1712948 Title: [CVE] KNewstuff downloads can install files outside the extraction directory Status in karchive package in Ubuntu: Fix Released Status in karchive source package in Xenial: In Progress Bug description: KDE Project Security Advisory ============================= Title: karchive: KNewstuff downloads can install files outside the extraction directory. Risk Rating: Important CVE: CVE-2016-6232 Platforms: Linux / Mac / Windows Versions: karchive < 5.24 Author: David Faure fa...@kde.org Date: 24 July 2016 Overview ======== A maliciously crafted archive (.zip or .tar.bz2) with "../" in the file paths could be offered for download via the KNewStuff framework (e.g. on www.kde- look.org), and upon extraction would install files anywhere in the user's home directory. Proof of concept ================ For testing, an example of a malicious archive can be found at http://www.davidfaure.fr/kde/tar_relative_path_outside_archive.tar.bz2 Impact ====== Users can unwillingly install files like a modified .bashrc, or a new .desktop file associated to a common MIME type and executing a malicious command. Workaround ========== Users should not install anything via KNewStuff until KDE Frameworks 5.24, or should at least inspect downloaded archives to make sure they don't contain relative paths containing "../". Solution ======== KArchive 5.24, released as part of KDE Frameworks 5.24, forbids archive extraction from installing files outside the extraction directory. Alternatively, commit 0cb243f in karchive.git can be applied to previous releases. Thanks to Andreas Cord-Landwehr for finding this issue and fixing it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/karchive/+bug/1712948/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~group.of.nepali.translators Post to : group.of.nepali.translators@lists.launchpad.net Unsubscribe : https://launchpad.net/~group.of.nepali.translators More help : https://help.launchpad.net/ListHelp