Vulnerability Name:

CVE-2011-0543 (CCN-64865)

Assigned:2010-11-02
Published:2010-11-02
Updated:2023-02-13
Summary: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.
CVSS v3 Severity:5.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:3.3 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P)
3.0 Low (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P/E:H/RL:TF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
3.3 Low (CCN CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P)
3.0 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P/E:H/RL:TF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
2.6 Low (REDHAT CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:P/A:P)
2.4 Low (REDHAT Temporal CVSS v2 Vector: AV:L/AC:H/Au:N/C:N/I:P/A:P/E:H/RL:TF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2011-0543

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: FUSE Web site
Filesystem in Userspace

Source: CCN
Type: FUSE GIT Repository
FUSE

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: CCN
Type: RHSA-2011-1083
Moderate: fuse security update

Source: CCN
Type: SA42961
FUSE fusermount Arbitrary Unmount Security Issue

Source: CCN
Type: halfdog.net
Unmount Any Filesystem Using fusermount

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch
secalert@redhat.com

Source: CCN
Type: OSVDB ID: 74707
Fuse --no-canonicalize Compatibility Fallback Insecure Mounting Weakness

Source: XF
Type: UNKNOWN
fuse-fusermount-symlink(64865)

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:fuse:fuse:2.8.5:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:6:*:server:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:6:*:workstation:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_desktop:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_hpc_node:6:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_server_eus:6.1.z:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20110543
    V
    		CVE-2011-0543
    2022-05-20
    oval:org.opensuse.security:def:33109
    P
    		Security update for java-1_8_0-ibm (Important) (in QA)
    2022-01-04
    oval:org.opensuse.security:def:33719
    P
    		Security update for ghostscript (Critical)
    2021-09-21
    oval:org.opensuse.security:def:32974
    P
    		Security update for djvulibre (Important)
    2021-08-05
    oval:org.opensuse.security:def:33675
    P
    		Security update for apache2 (Important)
    2021-06-17
    oval:org.opensuse.security:def:33651
    P
    		Security update for xen (Important)
    2021-05-19
    oval:org.opensuse.security:def:32895
    P
    		Security update for cifs-utils (Moderate)
    2021-04-13
    oval:org.opensuse.security:def:34397
    P
    		Security update for xen (Important)
    2021-04-06
    oval:org.opensuse.security:def:28954
    P
    		Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP2) (Important)
    2021-03-17
    oval:org.opensuse.security:def:29466
    P
    		Security update for the Linux Kernel (Important)
    2021-02-11
    oval:org.opensuse.security:def:28874
    P
    		Security update for clamav (Important)
    2020-12-22
    oval:org.opensuse.security:def:28873
    P
    		Security update for xen (Moderate)
    2020-12-22
    oval:org.opensuse.security:def:29569
    P
    		Security update for SDL (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:33261
    P
    		strongswan on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29626
    P
    		Security update for bzip2 (Important)
    2020-12-01
    oval:org.opensuse.security:def:33506
    P
    		Security update for openslp
    2020-12-01
    oval:org.opensuse.security:def:29171
    P
    		Security update for microcode_ctl (Important)
    2020-12-01
    oval:org.opensuse.security:def:32884
    P
    		ipsec-tools on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:30308
    P
    		Security update for tar (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:33612
    P
    		Security update for NetworkManager
    2020-12-01
    oval:org.opensuse.security:def:29313
    P
    		Security update for the Linux Kernel (Important)
    2020-12-01
    oval:org.opensuse.security:def:29520
    P
    		Security update for LibVNCServer (Critical)
    2020-12-01
    oval:org.opensuse.security:def:33204
    P
    		man on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28885
    P
    		Security update for bind (Important)
    2020-12-01
    oval:org.opensuse.security:def:34357
    P
    		Security update for system-config-printer (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29608
    P
    		Security update for bind (Important)
    2020-12-01
    oval:org.opensuse.security:def:33349
    P
    		Security update for openssh-openssl1 (Important)
    2020-12-01
    oval:org.opensuse.security:def:29085
    P
    		Security update for emacs (Important)
    2020-12-01
    oval:org.opensuse.security:def:32883
    P
    		ibutils on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29670
    P
    		Security update for dhcp (Low)
    2020-12-01
    oval:org.opensuse.security:def:33563
    P
    		Security update for ImageMagick (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29228
    P
    		Security update for python (Important)
    2020-12-01
    oval:org.opensuse.security:def:30345
    P
    		Security update for FUSE
    2020-12-01
    oval:org.mitre.oval:def:13431
    P
    		USN-1077-1 -- fuse vulnerabilities
    2014-07-07
    oval:org.mitre.oval:def:23608
    P
    		ELSA-2011:1083: fuse security update (Moderate)
    2014-05-26
    oval:org.mitre.oval:def:21871
    P
    		RHSA-2011:1083: fuse security update (Moderate)
    2014-02-24
    oval:com.redhat.rhsa:def:20111083
    P
    		RHSA-2011:1083: fuse security update (Moderate)
    2011-07-20
    BACK
    fuse fuse 2.8.5
    redhat enterprise linux 6
    redhat enterprise linux 6
    redhat enterprise linux desktop 6
    redhat enterprise linux hpc node 6
    redhat enterprise linux server eus 6.1.z