Gentoo: Scilab Insecure temporary file usage
Posted by Benjamin D. Thomas   
Gentoo An insecure temporary file usage has been reported in Scilab, allowing for symlink attacks.
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Gentoo Linux Security Advisory                           GLSA 200901-14
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Scilab: Insecure temporary file usage
      Date: January 21, 2009
      Bugs: #245922
        ID: 200901-14

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Synopsis
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An insecure temporary file usage has been reported in Scilab, allowing
for symlink attacks.

Background
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Scilab is a scientific software package for numerical computations.

Affected packages
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     Package                 /  Vulnerable  /               Unaffected
    -------------------------------------------------------------------
  1  sci-mathematics/scilab     < 4.1.2-r1                 >=3D 4.1.2-r1

Description
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Dmitry E. Oboukhov reported an insecure temporary file usage within the
scilink, scidoc and scidem scripts.

Impact
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A local attacker could perform symlink attacks 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
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All Scilab users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=3Dsci-mathematics/scilab-4.1.2-r1"=


References
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  [ 1 ] CVE-2008-4983
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-4983

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

  http://security.gentoo.org/glsa/glsa-200901-14.xml

Concerns?
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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
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Copyright 2009 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