Executive Summary

Summary
Title FUSE vulnerabilities
Informations
NameUSN-1077-1First vendor Publication2011-02-28
VendorUbuntuLast vendor Modification2011-02-28
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:P/A:P)
Cvss Base Score3.3Attack RangeLocal
Cvss Impact Score4.9Attack ComplexityMedium
Cvss Expoit Score3.4AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 8.04 LTS Ubuntu 9.10 Ubuntu 10.04 LTS Ubuntu 10.10

This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.

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

Ubuntu 8.04 LTS:
fuse-utils 2.7.2-1ubuntu2.3

Ubuntu 9.10:
fuse-utils 2.7.4-1.1ubuntu4.5

Ubuntu 10.04 LTS:
fuse-utils 2.8.1-1.1ubuntu3.1

Ubuntu 10.10:
fuse-utils 2.8.4-1ubuntu1.3

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

Details follow:

It was discovered that FUSE would incorrectly follow symlinks when checking mountpoints under certain conditions. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.

Original Source

Url : http://www.ubuntu.com/usn/USN-1077-1

CWE : Common Weakness Enumeration

idName
CWE-264Permissions, Privileges, and Access Controls
CWE-59Improper Link Resolution Before File Access ('Link Following')

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:6870
 
Oval ID: oval:org.mitre.oval:def:6870
Title: DSA-1989 fuse -- denial of service
Description: Dan Rosenberg discovered a race condition in FUSE, a Filesystem in USErspace. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.
Family: unix Class: patch
Reference(s): DSA-1989
CVE-2009-3297
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 4.0
Product(s): fuse
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:18426
 
Oval ID: oval:org.mitre.oval:def:18426
Title: DSA-1989-1 fuse - denial of service
Description: Dan Rosenberg discovered a race condition in FUSE, a Filesystem in USErspace. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.
Family: unix Class: patch
Reference(s): DSA-1989-1
CVE-2009-3297
Version: 7
Platform(s): Debian GNU/Linux 4.0
Debian GNU/Linux 5.0
Product(s): fuse
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21871
 
Oval ID: oval:org.mitre.oval:def:21871
Title: RHSA-2011:1083: fuse security update (Moderate)
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.
Family: unix Class: patch
Reference(s): RHSA-2011:1083-01
CVE-2010-3879
CVE-2011-0541
CVE-2011-0542
CVE-2011-0543
Version: 55
Platform(s): Red Hat Enterprise Linux 6
Product(s): fuse
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13431
 
Oval ID: oval:org.mitre.oval:def:13431
Title: USN-1077-1 -- fuse vulnerabilities
Description: It was discovered that FUSE would incorrectly follow symlinks when checking mountpoints under certain conditions. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.
Family: unix Class: patch
Reference(s): USN-1077-1
CVE-2011-0541
CVE-2011-0542
CVE-2011-0543
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 10.10
Ubuntu 9.10
Ubuntu 10.04
Product(s): fuse
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23608
 
Oval ID: oval:org.mitre.oval:def:23608
Title: ELSA-2011:1083: fuse security update (Moderate)
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.
Family: unix Class: patch
Reference(s): ELSA-2011:1083-01
CVE-2010-3879
CVE-2011-0541
CVE-2011-0542
CVE-2011-0543
Version: 21
Platform(s): Oracle Linux 6
Product(s): fuse
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27658
 
Oval ID: oval:org.mitre.oval:def:27658
Title: ELSA-2011-1083 -- fuse security update (moderate)
Description: [2.8.3-3] - Bump the release since the bz was set to the wrong target [2.8.3-2] - Fix another umount race (bz# 673250, CVE-2010-3879)
Family: unix Class: patch
Reference(s): ELSA-2011-1083
CVE-2010-3879
CVE-2011-0541
CVE-2011-0542
CVE-2011-0543
Version: 2
Platform(s): Oracle Linux 6
Product(s): fuse
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application33

OpenVAS Exploits

DateDescription
2012-06-06Name : RedHat Update for fuse RHSA-2011:1083-01
File : nvt/gb_RHSA-2011_1083-01_fuse.nasl
2011-03-07Name : Ubuntu Update for fuse vulnerabilities USN-1077-1
File : nvt/gb_ubuntu_USN_1077_1.nasl
2010-09-22Name : Fedora Update for samba FEDORA-2010-14678
File : nvt/gb_fedora_2010_14678_samba_fc12.nasl
2010-03-16Name : Debian Security Advisory DSA 2004-1 (samba)
File : nvt/deb_2004_1.nasl
2010-03-12Name : Fedora Update for samba FEDORA-2010-3999
File : nvt/gb_fedora_2010_3999_samba_fc12.nasl
2010-03-12Name : Fedora Update for samba FEDORA-2010-4050
File : nvt/gb_fedora_2010_4050_samba_fc11.nasl
2010-03-02Name : Mandriva Update for ncpfs MDVSA-2010:046 (ncpfs)
File : nvt/gb_mandriva_MDVSA_2010_046.nasl
2010-03-02Name : Mandriva Update for fuse MDVSA-2010:047 (fuse)
File : nvt/gb_mandriva_MDVSA_2010_047.nasl
2010-03-02Name : Fedora Update for fuse FEDORA-2010-1140
File : nvt/gb_fedora_2010_1140_fuse_fc11.nasl
2010-03-02Name : Fedora Update for ncpfs FEDORA-2010-1145
File : nvt/gb_fedora_2010_1145_ncpfs_fc12.nasl
2010-03-02Name : Fedora Update for fuse FEDORA-2010-1159
File : nvt/gb_fedora_2010_1159_fuse_fc12.nasl
2010-03-02Name : Fedora Update for ncpfs FEDORA-2010-1168
File : nvt/gb_fedora_2010_1168_ncpfs_fc11.nasl
2010-03-02Name : Fedora Update for samba FEDORA-2010-1190
File : nvt/gb_fedora_2010_1190_samba_fc11.nasl
2010-03-02Name : Fedora Update for samba FEDORA-2010-1218
File : nvt/gb_fedora_2010_1218_samba_fc12.nasl
2010-01-29Name : Ubuntu Update for fuse vulnerability USN-892-1
File : nvt/gb_ubuntu_USN_892_1.nasl
2010-01-29Name : Samba 'mount.cifs' Utility Local Privilege Escalation Vulnerability
File : nvt/samba_37992.nasl
2010-01-29Name : Ubuntu Update for samba vulnerability USN-893-1
File : nvt/gb_ubuntu_USN_893_1.nasl

Open Source Vulnerability Database (OSVDB)

idDescription
74709Fuse Symlink Arbitrary Directory Unmount
74708Fuse Unspecified Timing Attack Current Directory Manipulation Weakness
74707Fuse --no-canonicalize Compatibility Fallback Insecure Mounting Weakness

Nessus® Vulnerability Scanner

DateDescription
2014-06-13Name : The remote openSUSE host is missing a security update.
File : suse_11_3_fuse-110228.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1083.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110720_fuse_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-12-13Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_util-linux-and-fuse-201103-7418.nasl - Type : ACT_GATHER_INFO
2011-07-21Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1083.nasl - Type : ACT_GATHER_INFO
2011-05-05Name : The remote openSUSE host is missing a security update.
File : suse_11_2_fuse-110228.nasl - Type : ACT_GATHER_INFO
2011-04-01Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_util-linux-and-fuse-201103-7362.nasl - Type : ACT_GATHER_INFO
2011-03-31Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_util-linux-and-fuse-201103-110302.nasl - Type : ACT_GATHER_INFO
2011-03-01Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1077-1.nasl - Type : ACT_GATHER_INFO
2011-01-27Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_fuse-6838.nasl - Type : ACT_GATHER_INFO
2011-01-27Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_fuse-6840.nasl - Type : ACT_GATHER_INFO
2010-09-16Name : The remote Fedora host is missing a security update.
File : fedora_2010-14678.nasl - Type : ACT_GATHER_INFO
2010-07-01Name : The remote Fedora host is missing a security update.
File : fedora_2010-1140.nasl - Type : ACT_GATHER_INFO
2010-07-01Name : The remote Fedora host is missing a security update.
File : fedora_2010-1159.nasl - Type : ACT_GATHER_INFO
2010-07-01Name : The remote Fedora host is missing a security update.
File : fedora_2010-1190.nasl - Type : ACT_GATHER_INFO
2010-07-01Name : The remote Fedora host is missing a security update.
File : fedora_2010-1218.nasl - Type : ACT_GATHER_INFO
2010-03-02Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2004.nasl - Type : ACT_GATHER_INFO
2010-02-15Name : The remote openSUSE host is missing a security update.
File : suse_11_1_fuse-100203.nasl - Type : ACT_GATHER_INFO
2010-02-15Name : The remote openSUSE host is missing a security update.
File : suse_11_0_fuse-100203.nasl - Type : ACT_GATHER_INFO
2010-02-15Name : The remote openSUSE host is missing a security update.
File : suse_11_2_fuse-100203.nasl - Type : ACT_GATHER_INFO
2010-02-03Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_fuse-100126.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
DateInformations
2014-02-17 11:58:20
  • Multiple Updates
2013-05-11 00:54:09
  • Multiple Updates