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CVE-2011-0543

3.3 · LOW

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 un…

Published Sep 2, 2011fuseCWE-264EPSS 0.33%

Overview

CVE-2011-0543 is a low-severity vulnerability affecting fuse fuse. It was published on September 2, 2011 and has a CVSS 2.0 base score of 3.3 (LOW).

This vulnerability has a CVSS 2.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from fuse. Update fuse to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
fusefuse0Affected

References

Reffuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=cbd3a2a84068aae6e3fe32939d88470d712dbf47Reflists.opensuse.org/opensuse-security-announce/2011-04/msg00000.htmlRefwww.openwall.com/lists/oss-security/2011/02/02/2Refwww.openwall.com/lists/oss-security/2011/02/03/5Refwww.openwall.com/lists/oss-security/2011/02/08/4Reffuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=cbd3a2a84068aae6e3fe32939d88470d712dbf47Reflists.opensuse.org/opensuse-security-announce/2011-04/msg00000.htmlRefwww.openwall.com/lists/oss-security/2011/02/02/2Refwww.openwall.com/lists/oss-security/2011/02/03/5Refwww.openwall.com/lists/oss-security/2011/02/08/4

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0543?

CVE-2011-0543 is a low-severity vulnerability affecting fuse fuse. It was published on September 2, 2011 and has a CVSS 2.0 base score of 3.3 (LOW).

How severe is CVE-2011-0543?

This vulnerability has a CVSS 2.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-0543?

Check the references section for vendor advisories and patches from fuse. Update fuse to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-0543?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0543 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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