CVE-2011-0543

Severity: low (CVSS 3.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-09-02 · updated 2026-06-16
Weakness: CWE-264

Description

Certain legacy functionality in fusermount in fuse 2.8.5 and earlier, when util-linux does not support the --no-canonicalize option, allows local users to bypass intended access restrictions and unmount arbitrary directories via a symlink attack.

Affected products

Fuse: through 2.8.5; 1.9, 2.0-pre0, 2.0-pre1, 2.1, 2.2, 2.2.1 (+26)

References

http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=cbd3a2a84068aae6e3fe32939d88470d712dbf47
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://www.openwall.com/lists/oss-security/2011/02/02/2
http://www.openwall.com/lists/oss-security/2011/02/03/5
http://www.openwall.com/lists/oss-security/2011/02/08/4
http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=cbd3a2a84068aae6e3fe32939d88470d712dbf47
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://www.openwall.com/lists/oss-security/2011/02/02/2
http://www.openwall.com/lists/oss-security/2011/02/03/5
http://www.openwall.com/lists/oss-security/2011/02/08/4

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