tkdiff temporary file symlink

tkdiff-tmp-file-symlink (23858) The risk level is classified as MediumMedium Risk

Description:

tkdiff creates insecure temporary files. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to other files on the system, which would allow the attacker to create or overwrite arbitrary files on the system with the privileges of the user running tkdiff.


Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of tkdiff (4.1.1 or later), available from the SourceForge.net Web site. See References.

For Debian GNU/Linux:
Refer to DSA-927-1 for upgrade information. See References.

For other distributions:
Contact your vendor for patch or upgrade information.

References:

  • SourceForge.net: tkdiff - File Release Notes and Changelog: 4.1.1.
  • BID-16064: TkDiff Insecure Temporary File Creation Vulnerability
  • CVE-2005-3343: tkdiff before 4.1.1 allows local users to overwrite arbitrary files via a symlink attack on temporary files.
  • DSA-927: tkdiff -- insecure temporary file
  • MDKSA-2006:001: Updated tkcvs packages fix insecure temporary file vulnerability
  • OSVDB ID: 21933: TkDiff Temporary File Symlink Privilege Escalation
  • SA18083: TkDiff Insecure Temporary File Creation Vulnerability
  • SECTRACK ID: 1015421: TkDiff Unsafe Temporary Files May Let Local Users Gain Elevated Privileges

Platforms Affected:

  • Debian Debian Linux 3.0
  • Debian Debian Linux 3.1
  • MandrakeSoft Mandrake Linux 2006 X86_64
  • MandrakeSoft Mandrake Linux 2006
  • MandrakeSoft Mandrake Linux LE2005
  • MandrakeSoft Mandrake Linux LE2005 X86_64
  • tkdiff tkdiff prior to 4.1.1

Reported:

Dec 27, 2005

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