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Debian-Testing alert DTSA-27-1 (fuse)

From:  Neil McGovern <maulkin@mx0.halon.org.uk>
To:  secure-testing-announce@lists.alioth.debian.org
Subject:  [SECURITY] [DTSA-27-1] New fuse packages fix potential data corruption when installed seduid root
Date:  Tue, 24 Jan 2006 09:56:51 +0000

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- Debian Testing Security Advisory DTSA-27-1 January 20th, 2006 secure-testing-team@lists.alioth.debian.org Neil McGovern http://secure-testing-master.debian.net/ - -------------------------------------------------------------------------- Package : fuse Vulnerability : potential data corruption when installed seduid root Problem-Scope : local Debian-specific: No CVE ID : CVE-2005-3531 Thomas Biege discovered that fusermount in FUSE before 2.4.1, if installed setuid root, allows local users to corrupt /etc/mtab and possibly modify mount options by performing a mount over a directory whose name contains certain special characters Successful exploitation could result in a denial of service if mount options become unusable. An attacker can also exploit this issue to add arbitrary mount points that could grant the attacker read and possibly write access to otherwise restricted or privileged mount points. Other attacks are also possible. For the testing distribution (etch) this is fixed in version 2.3.0-4.2etch1 For the unstable distribution (sid) this is fixed in version 2.4.1-0.1 This upgrade is recommended if you use fuse. The Debian testing security team does not track security issues for the stable (sarge) and oldstable (woody) distributions. If stable is vulnerable, the Debian security team will make an announcement once a fix is ready. Upgrade Instructions - -------------------- To use the Debian testing security archive, add the following lines to your /etc/apt/sources.list: deb http://secure-testing.debian.net/debian-secure-testing etch/security-updates main contrib non-free deb-src http://secure-testing.debian.net/debian-secure-testing etch/security-updates main contrib non-free Run the following command as root to make apt trust this repository: wget http://secure-testing-master.debian.net/ziyi-2005-7.asc -O - | sudo apt-key add - To install the update, run this command as root: apt-get update && apt-get upgrade For further information about the Debian testing security team, please refer to http://secure-testing-master.debian.net/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFD1fnj97LBwbNFvdMRAt/JAJwMpLostkUFbT09bWd/Bgq6AxbIQgCfcg2d C7lHCQG6W++YJt43fER58ME= =YxmJ -----END PGP SIGNATURE----- _______________________________________________ secure-testing-announce mailing list secure-testing-announce@lists.alioth.debian.org http://lists.alioth.debian.org/mailman/listinfo/secure-te...


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