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GLSA-200511-17 : FUSE: mtab corruption through fusermount

low Nessus Plugin ID 20261

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200511-17 (FUSE: mtab corruption through fusermount)

 Thomas Biege discovered that fusermount fails to securely handle special characters specified in mount points.
 Impact :

 A local attacker could corrupt the contents of the /etc/mtab file by mounting over a maliciously-named directory using fusermount, potentially allowing the attacker to set unauthorized mount options.
 This is possible only if fusermount is installed setuid root, which is the default in Gentoo.
 Workaround :

 There is no known workaround at this time.

Solution

All FUSE users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=sys-fs/fuse-2.4.1-r1'

See Also

https://security.gentoo.org/glsa/200511-17

Plugin Details

Severity: Low

ID: 20261

File Name: gentoo_GLSA-200511-17.nasl

Version: 1.15

Type: local

Published: 12/7/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:fuse, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 11/22/2005

Vulnerability Publication Date: 11/22/2005

Reference Information

CVE: CVE-2005-3531

GLSA: 200511-17