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Gentoo: UUDeview Insecure temporary file creation Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in UUDeview may allow local attackers to conduct symlink attacks.
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Gentoo Linux Security Advisory                           GLSA 200808-11
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                                              http://security.gentoo.org/=

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    Severity: Normal
       Title: UUDeview: Insecure temporary file creation
        Date: August 11, 2008
        Bugs: #222275, #224193
          ID: 200808-11

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

A vulnerability in UUDeview may allow local attackers to conduct
symlink attacks.

Background
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UUdeview is encoder and decoder supporting various binary formats.
NZBGet is a command-line based binary newsgrabber supporting .nzb
files.

Affected packages
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      -------------------------------------------------------------------=

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

    1  app-text/uudeview      < 0.5.20-r1                   >=3D 0.5.20-r=
1
    2  news-nntp/nzbget         < 0.4.0                         >=3D 0.4.=
0
      -------------------------------------------------------------------=

       2 affected packages on all of their supported architectures.
      -------------------------------------------------------------------=


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

UUdeview makes insecure usage of the tempnam() function when creating
temporary files. NZBGet includes a copy of the vulnerable code.

Impact
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A local attacker could exploit this vulnerability to overwrite
arbitrary files on the system.

Workaround
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There is no known workaround at this time.

Resolution
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All UUDview users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=3Dapp-text/uudeview-0.5.20-r1=
"

All NZBget users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=3Dnews-nntp/nzbget-0.4.0"

References
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    [ 1 ] CVE-2008-2266
          http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-2266

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-200808-11.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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