Vulnerability CVE-2011-0542
Published: 2011-09-02   Modified: 2012-02-13

Description:
fusermount in fuse 2.8.5 and earlier does not perform a chdir to / before performing a mount or umount, which allows local users to unmount arbitrary directories via unspecified vectors.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:M/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.3/10
4.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
FUSE -> FUSE 

 References:
http://www.openwall.com/lists/oss-security/2011/02/08/4
http://www.openwall.com/lists/oss-security/2011/02/03/5
http://www.openwall.com/lists/oss-security/2011/02/02/2
http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=commit;h=1e7607ff89c65b005f69e27aeb1649d624099873
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