[SECURITY] [DSA 903-1] New unzip packages fix unauthorised permissions modification

From: Martin Schulze (joey_at_infodrom.org)
Date: 11/21/05

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    Date: Mon, 21 Nov 2005 12:11:24 +0100 (CET)
    To: bugtraq@securityfocus.com
    
    

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 903-1 security@debian.org
    http://www.debian.org/security/ Martin Schulze
    November 21st, 2005 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : unzip
    Vulnerability : race condition
    Problem type : local
    Debian-specific: no
    CVE ID : CAN-2005-2475
    BugTraq ID : 14450
    Debian Bug : 321927

    Imran Ghory discovered a race condition in the permissions setting
    code in unzip. When decompressing a file in a directory an attacker
    has access to, unzip could be tricked to set the file permissions to a
    different file the user has permissions to.

    For the old stable distribution (woody) this problem has been fixed in
    version 5.50-1woody4.

    For the stable distribution (sarge) this problem has been fixed in
    version 5.52-1sarge2.

    For the unstable distribution (sid) this problem has been fixed in
    version 5.52-4.

    We recommend that you upgrade your unzip package.

    Upgrade Instructions
    - --------------------

    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.

    If you are using the apt-get package manager, use the line for
    sources.list as given below:

    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages

    You may use an automated update by adding the resources from the
    footer to the proper configuration.

    Debian GNU/Linux 3.0 alias woody
    - --------------------------------

      Source archives:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4.dsc
          Size/MD5 checksum: 571 684b8e8a520bfb6fa00ed477e1df9f0e
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4.diff.gz
          Size/MD5 checksum: 6099 44a7e7bb15dd3ab02a7e001cdaa0ca79
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50.orig.tar.gz
          Size/MD5 checksum: 1068379 6d27bcdf9b51d0ad0f78161d0f99582e

      Alpha architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_alpha.deb
          Size/MD5 checksum: 160404 4031c211175ee7c728f8cc42334ae816

      ARM architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_arm.deb
          Size/MD5 checksum: 139336 7ebcf2fc5f4cc97000954c05bd80966b

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_i386.deb
          Size/MD5 checksum: 122764 2369eed1365bb4f6aadd09ac75c9693b

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_ia64.deb
          Size/MD5 checksum: 190982 a0e88f9c1279d3b2c7941690e439ff65

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_hppa.deb
          Size/MD5 checksum: 146928 7cfae9b95228d90ca3a1d83bda79655b

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_m68k.deb
          Size/MD5 checksum: 119542 f3b8481fb06596dc6fc84aeefd7e5bbf

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_mips.deb
          Size/MD5 checksum: 142948 dc037b7fa6f703ca7a1b140d2c19911e

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_mipsel.deb
          Size/MD5 checksum: 143390 3630211263e9245e1773913a2474a9ff

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_powerpc.deb
          Size/MD5 checksum: 136326 0aa9b78a55e11796693b906f0900ac64

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_s390.deb
          Size/MD5 checksum: 137018 cfd3ef68d1c6d2ecde54c1a67a6c3adc

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody4_sparc.deb
          Size/MD5 checksum: 147472 3f90c2488e0bf3aa6b3f0ec8acd815d9

    Debian GNU/Linux 3.1 alias sarge
    - --------------------------------

      Source archives:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2.dsc
          Size/MD5 checksum: 528 84e70559fc6ca7a2a9331f31f462b548
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2.diff.gz
          Size/MD5 checksum: 4970 69b3a1be17c376bf4419201f4d1ec8a5
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52.orig.tar.gz
          Size/MD5 checksum: 1140291 9d23919999d6eac9217d1f41472034a9

      Alpha architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_alpha.deb
          Size/MD5 checksum: 175420 841029027991b860df6215c994b7c3b6

      AMD64 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_amd64.deb
          Size/MD5 checksum: 154804 c3a1cf3a9e5f63af998df54898e4d88f

      ARM architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_arm.deb
          Size/MD5 checksum: 155356 7d0ea21c83b7c01c74c3822abd5f022c

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_i386.deb
          Size/MD5 checksum: 144864 320a080d0cfbf93a47e75469d95f84e9

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_ia64.deb
          Size/MD5 checksum: 206580 ba92d4f8810bc7a44ab7c8957f23222a

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_hppa.deb
          Size/MD5 checksum: 162756 fd86bf652a165e4f8d390faae9568514

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_m68k.deb
          Size/MD5 checksum: 133674 da733ceba3d7467b46a5ec4ba92d4acc

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_mips.deb
          Size/MD5 checksum: 163318 773c63ffc83a536d8809757d5a8a8b4a

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_mipsel.deb
          Size/MD5 checksum: 163892 18f2898f965b04c40d72d92c91243dfd

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_powerpc.deb
          Size/MD5 checksum: 157286 822fb6f064c6a298659f4966034a76fb

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_s390.deb
          Size/MD5 checksum: 156410 7bb65d46d779040eeaddab1ff916c039

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.52-1sarge2_sparc.deb
          Size/MD5 checksum: 154876 763b24730efd2ac6a334f8d1af1706be

      These files will probably be moved into the stable distribution on
      its next update.

    - ---------------------------------------------------------------------------------
    For apt-get: deb http://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: debian-security-announce@lists.debian.org
    Package info: `apt-cache show <pkg>' and http://packages.debian.org/>

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