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Gentoo: R Insecure temporary file creation Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Gentoo R is vulnerable to symlink attacks due to an insecure usage of temporary files.
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Gentoo Linux Security Advisory                           GLSA 200809-13
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                                              http://security.gentoo.org/=

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    Severity: Normal
       Title: R: Insecure temporary file creation
        Date: September 22, 2008
        Bugs: #235822
          ID: 200809-13

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Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

R is vulnerable to symlink attacks due to an insecure usage of
temporary files.

Background
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R is a GPL licensed implementation of S, a language and environment for
statistical computing and graphics.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

      -------------------------------------------------------------------=

       Package     /  Vulnerable  /                           Unaffected
      -------------------------------------------------------------------=

    1  dev-lang/R       < 2.7.1                                 >=3D 2.7.=
1

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Dmitry E. Oboukhov reported that the "javareconf" script uses temporary
files in an insecure manner.

Impact
=3D=3D=3D=3D=3D=3D

A local attacker could exploit this vulnerability to overwrite
arbitrary files with the privileges of the user running the
application.

Workaround
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There is no known workaround at this time.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All R users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=3Ddev-lang/R-2.7.1"

References
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    [ 1 ] CVE-2008-3931
          http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-3931

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

    http://security.gentoo.org/glsa/glsa-200809-13.xml

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=3D=3D=3D=3D=3D=3D=3D

Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5
 
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