bugtraq - [KDE Security Advisory]: Kate backup file permission leak

Open Source and information security mailing list archives

Message-ID: <200507181719.41618.mueller@kde.org>
Date: Mon, 18 Jul 2005 17:19:37 +0200
From: Dirk Mueller <mueller@....org>
To: kde-announce@....org
Cc: bugtraq@...urityfocus.com
Subject: [KDE Security Advisory]: Kate backup file permission
	leak


KDE Security Advisory: Kate backup file permission leak
Original Release Date: 2005-07-18
URL: http://www.kde.org/info/security/advisory-20050718-1.txt

0. References
        CVE CAN-2005-1920
        https://bugs.kde.org/show_bug.cgi?id=103331


1. Systems affected:

        All maintained versions of Kate and Kwrite as shipped with
        KDE 3.2.x up to including 3.4.0. KDE 3.1.x and older and
        KDE 3.4.1 and newer are not affected.


2. Overview:

	Kate / Kwrite create a file backup before saving a modified
        file. These backup files are created with default permissions,
        even if the original file had more strict permissions set.


3. Impact:

	Depending on the system security settings, backup files
        might be readable by other users.  Kate / Kwrite are
        network transparent applications and therefore this
        vulnerability might not be restricted to local users.


4. Solution:

        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.


5. Patch:

        A patch for KDE 3.4.0 is available from
        ftp://ftp.kde.org/pub/kde/security_patches :

        50f7bc6d8cf4b7aaa65e4e8062fc46c9  post-3.4.0-kdelibs-kate.diff

        A patch for KDE 3.3.x is available from
        ftp://ftp.kde.org/pub/kde/security_patches :

        138c3252883171d55ec24ed0318950fd  post-3.3.2-kdelibs-kate.diff

        A patch for KDE 3.2.x is available from
        ftp://ftp.kde.org/pub/kde/security_patches :

        56667c05f545e8c9711c35bf78497bfd  post-3.2.3-kdelibs-kate.diff

-- 
Dirk//\

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