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TSLSA-2005-0053 - unzip
From: Trustix Security Advisor <tsl () trustix org>
Date: Fri, 30 Sep 2005 20:16:57 +0200

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Trustix Secure Linux Security Advisory #2005-0053

Package names:     unzip   
Summary:           Multiple vulnerabilities
Date:              2005-09-30
Affected versions: Trustix Secure Linux 2.2
                   Trustix Secure Linux 3.0

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Package description:
  unzip
  The unzip utility is used to list, test, or extract files from a zip
  archive.  Zip archives are commonly found on MS-DOS systems.  The zip
  utility, included in the zip package, creates zip archives.  Zip and
  unzip are both compatible with archives created by PKWARE(R)'s PKZIP
  for MS-DOS, but the programs' options and default behaviors do differ
  in some respects.

Problem description:
  unzip < TSL 3.0 > < TSL 2.2 >
  - SECURITY Fix: Fix Race condition that allows local users to modify
    permissions of arbitrary files via a hard link attack on a file while
    it is being decompressed, whose permissions are changed by Unzip after
    the decompression is complete.

    The Common Vulnerabilities and Exposures project has assigned the
    name CAN-2005-2475 to this issue.
 
Action:
  We recommend that all systems with this package installed be upgraded.
  Please note that if you do not need the functionality provided by this
  package, you may want to remove it from your system.


Location:
  All Trustix Secure Linux updates are available from
  <URI:http://http.trustix.org/pub/trustix/updates/>
  <URI:ftp://ftp.trustix.org/pub/trustix/updates/>


About Trustix Secure Linux:
  Trustix Secure Linux is a small Linux distribution for servers. With focus
  on security and stability, the system is painlessly kept safe and up to
  date from day one using swup, the automated software updater.


Automatic updates:
  Users of the SWUP tool can enjoy having updates automatically
  installed using 'swup --upgrade'.


Questions?
  Check out our mailing lists:
  <URI:http://www.trustix.org/support/>


Verification:
  This advisory along with all Trustix packages are signed with the
  TSL sign key.
  This key is available from:
  <URI:http://www.trustix.org/TSL-SIGN-KEY>

  The advisory itself is available from the errata pages at
  <URI:http://www.trustix.org/errata/trustix-2.2/> and
  <URI:http://www.trustix.org/errata/trustix-3.0/>
  or directly at
  <URI:http://www.trustix.org/errata/2005/0053/>


MD5sums of the packages:
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8bc920f5571c1244b7f39447d14f1fc1  3.0/rpms/unzip-5.52-4tr.i586.rpm

4ebdb8a6b3c20d7cd6c1ea8e4d76028c  2.2/rpms/unzip-5.51-2tr.i586.rpm
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Trustix Security Team


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