FUSE fusermount denial of service

fuse-fusermount-dos (55945) The risk level is classified as MediumMedium Risk

Description:

FUSE is vulnerable to a denial of service, caused by a race condition in the fusermount utility. The fusermount utility creates temporary files insecurely during umount operations. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to various files on the system, which could allow the attacker to cause a denial of service or unmount a FUSE file system being utilized by a privileged user.

*CVSS:

Base Score: 3.3
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 3.1
  Exploitability: High
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

File Manipulation

Remedy:

Apply the appropriate patch for your system. See References.

References:

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 4.0
  • Debian Debian Linux 5.0
  • FedoraProject Fedora Core 11
  • FedoraProject Fedora Core 12
  • FUSE FUSE
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • Mandriva Enterprise Server 5 X86_64
  • Mandriva Enterprise Server 5
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.0 X86_64
  • Mandriva Linux 2009.1
  • Mandriva Linux 2009.1 X86_64
  • Mandriva Linux 2010 X86_64
  • Mandriva Linux 2010
  • RedHat Enterprise Linux 4
  • RedHat Enterprise Linux 5

Reported:

Jan 27, 2010

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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