CVE Vulnerabilities

CVE-2010-2056

Improper Link Resolution Before File Access ('Link Following')

Published: Jul 22, 2010 | Modified: Jul 22, 2010
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
3.3 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
1.9 LOW
AV:L/AC:M/Au:N/C:N/I:N/A:P
RedHat/V3
Ubuntu
MEDIUM

GNU gv before 3.7.0 allows local users to overwrite arbitrary files via a symlink attack on a temporary file.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Gv Gnu * 3.6.9 (including)
Gv Gnu 3.5.8 (including) 3.5.8 (including)
Gv Gnu 3.6.0 (including) 3.6.0 (including)
Gv Gnu 3.6.1 (including) 3.6.1 (including)
Gv Gnu 3.6.2 (including) 3.6.2 (including)
Gv Gnu 3.6.3 (including) 3.6.3 (including)
Gv Gnu 3.6.4 (including) 3.6.4 (including)
Gv Gnu 3.6.5 (including) 3.6.5 (including)
Gv Gnu 3.6.6 (including) 3.6.6 (including)
Gv Gnu 3.6.7 (including) 3.6.7 (including)
Gv Gnu 3.6.8 (including) 3.6.8 (including)
Gv Ubuntu dapper *
Gv Ubuntu hardy *
Gv Ubuntu jaunty *
Gv Ubuntu karmic *
Gv Ubuntu lucid *
Gv Ubuntu upstream *

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References