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Test ID:1.3.6.1.4.1.25623.1.0.68813
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-1045-1 (fuse)
Summary:Ubuntu USN-1045-1 (fuse)
Description:The remote host is missing an update to fuse
announced via advisory USN-1045-1.

Details follow:

It was discovered that FUSE could be tricked into incorrectly updating the
mtab file when mounting filesystems. A local attacker, with access to use
FUSE, could unmount arbitrary locations, leading to a denial of service.

Solution:
The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 8.04 LTS:
fuse-utils 2.7.2-1ubuntu2.2

Ubuntu 9.10:
fuse-utils 2.7.4-1.1ubuntu4.4

Ubuntu 10.04 LTS:
fuse-utils 2.8.1-1.1ubuntu2.2

Ubuntu 10.10:
fuse-utils 2.8.4-1ubuntu1.1

In general, a standard system update will make all the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-1045-1

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2010-3879
http://lists.grok.org.uk/pipermail/full-disclosure/2010-November/077247.html
http://openwall.com/lists/oss-security/2010/11/04/8
http://openwall.com/lists/oss-security/2010/11/05/2
http://www.halfdog.net/Security/FuseTimerace/
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053792.html
http://www.mandriva.com/security/advisories?name=MDVSA-2013:155
SuSE Security Announcement: SUSE-SR:2011:005 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://www.ubuntu.com/usn/USN-1045-1
http://www.ubuntu.com/usn/USN-1045-2
BugTraq ID: 44623
http://www.securityfocus.com/bid/44623
http://osvdb.org/70520
http://secunia.com/advisories/42965
http://secunia.com/advisories/42961
http://www.vupen.com/english/advisories/2011/0181
http://www.vupen.com/english/advisories/2011/0302
XForce ISS Database: fuse-fusermount-tool-dos(62986)
http://xforce.iss.net/xforce/xfdb/62986
CopyrightCopyright (c) 2011 E-Soft Inc. http://www.securityspace.com

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