Debian: New openssl packages fix predictable random number generator

    Date13 May 2008
    Posted ByLinuxSecurity Advisories
    Luciano Bello discovered that the random number generator in Debian's openssl package is predictable. This is caused by an incorrect Debian-specific change to the openssl package (CVE-2008-0166). As a result, cryptographic key material may be guessable.
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    Debian Security Advisory DSA-1571-1                  This email address is being protected from spambots. You need JavaScript enabled to view it.                           Florian Weimer
    May 13, 2008                
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    Package        : openssl
    Vulnerability  : predictable random number generator
    Problem type   : remote
    Debian-specific: yes
    CVE Id(s)      : CVE-2008-0166
    Luciano Bello discovered that the random number generator in Debian's
    openssl package is predictable.  This is caused by an incorrect
    Debian-specific change to the openssl package (CVE-2008-0166).  As a
    result, cryptographic key material may be guessable.
    This is a Debian-specific vulnerability which does not affect other
    operating systems which are not based on Debian.  However, other systems
    can be indirectly affected if weak keys are imported into them.
    It is strongly recommended that all cryptographic key material which has
    been generated by OpenSSL versions starting with 0.9.8c-1 on Debian
    systems is recreated from scratch.  Furthermore, all DSA keys ever used
    on affected Debian systems for signing or authentication purposes should
    be considered compromised; the Digital Signature Algorithm relies on a
    secret random value used during signature generation.
    The first vulnerable version, 0.9.8c-1, was uploaded to the unstable
    distribution on 2006-09-17, and has since propagated to the testing and
    current stable (etch) distributions.  The old stable distribution
    (sarge) is not affected.
    Affected keys include SSH keys, OpenVPN keys, DNSSEC keys, and key
    material for use in X.509 certificates and session keys used in SSL/TLS
    connections.  Keys generated with GnuPG or GNUTLS are not affected,
    A detector for known weak key material will be published at:
        (OpenPGP signature)
    Instructions how to implement key rollover for various packages will be
    published at:
    This web site will be continously updated to reflect new and updated
    instructions on key rollovers for packages using SSL certificates.
    Popular packages not affected will also be listed.
    In addition to this critical change, two other vulnerabilities have been
    fixed in the openssl package which were originally scheduled for release
    with the next etch point release: OpenSSL's DTLS (Datagram TLS,
    basically "SSL over UDP") implementation did not actually implement the
    DTLS specification, but a potentially much weaker protocol, and
    contained a vulnerability permitting arbitrary code execution
    (CVE-2007-4995).  A side channel attack in the integer multiplication
    routines is also addressed (CVE-2007-3108).
    For the stable distribution (etch), these problems have been fixed in
    version 0.9.8c-4etch3.
    For the unstable distribution (sid) and the testing distribution
    (lenny), these problems have been fixed in version 0.9.8g-9.
    We recommend that you upgrade your openssl package and subsequently
    regenerate any cryptographic material, as outlined above.
    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 4.0 alias etch
    - -------------------------------
    Source archives:
        Size/MD5 checksum:     1099 5e60a893c9c3258669845b0a56d9d9d6
        Size/MD5 checksum:  3313857 78454bec556bcb4c45129428a766c886
        Size/MD5 checksum:    55320 f0e457d6459255da86f388dcf695ee20
    alpha architecture (DEC Alpha)
        Size/MD5 checksum:  1025954 d82f535b49f8c56aa2135f2fa52e7059
        Size/MD5 checksum:  4558230 399adb0f2c7faa51065d4977a7f3b3c4
        Size/MD5 checksum:  2620892 0e5efdec0a912c5ae56bb7c5d5d896c6
        Size/MD5 checksum:  2561650 affe364ebcabc2aa33ae8b8c3f797b5e
        Size/MD5 checksum:   677172 5228d266c1fc742181239019dbad4c42
    amd64 architecture (AMD x86_64 (AMD64))
        Size/MD5 checksum:  1654902 d8ad8dc51449cf6db938d2675789ab25
        Size/MD5 checksum:   891102 2e97e35c44308a59857d2e640ddf141a
        Size/MD5 checksum:   992248 82193ea11b0bc08c74a775039b855a05
        Size/MD5 checksum:  2178610 fb7c53e5f157c43753db31885ff68420
        Size/MD5 checksum:   580250 7fb3d7fee129cc9a4fb21f5c471dfbab
    arm architecture (ARM)
        Size/MD5 checksum:  1537440 c5ab48e9bde49ba32648fb581b90ba18
        Size/MD5 checksum:   516576 84385b137c731de3b86824c17affa9f3
        Size/MD5 checksum:  2049882 7ed60840eb3e6b26c6856dcaf5776b0c
        Size/MD5 checksum:  1011698 abfa887593089ac0f1cd4e31154897ee
        Size/MD5 checksum:   805912 a605625ea107252e9aebbc77902a63ed
    hppa architecture (HP PA RISC)
        Size/MD5 checksum:  1585900 2cbe55764db351dc6c3c2d622aa90caf
        Size/MD5 checksum:  2248328 664fb0992b786ce067a7d878056fc191
        Size/MD5 checksum:  1030782 21f445c541d5e5b7c16de1db9ee9d681
        Size/MD5 checksum:   945144 c1092f3bb94d920d0beaa372c9cab04e
        Size/MD5 checksum:   631132 76339119275786b5e80a7a1b4cd26b71
    i386 architecture (Intel ia32)
        Size/MD5 checksum:  2086512 eeef437fb87ad6687cd953d5951aa472
        Size/MD5 checksum:  5584696 6d364557c9d392bb90706e049860be66
        Size/MD5 checksum:  1000832 ed5668305f1e4b4e4a22fbd24514c758
        Size/MD5 checksum:   554676 dbad0172c990359282884bac1d141034
        Size/MD5 checksum:  2717086 361fde071d18ccf93338134357ab1a61
    ia64 architecture (Intel ia64)
        Size/MD5 checksum:   801748 05b29fc674311bd31fe945036a08abd5
        Size/MD5 checksum:  1192192 56be85aceb4e79e45f39c4546bfecf4f
        Size/MD5 checksum:  2593418 f9edaea0a86c1a1cea391f890d7ee70f
        Size/MD5 checksum:  1569418 4b2cb04d13efabdddddbd0f6d3cefd9b
        Size/MD5 checksum:  1071156 e1f487c4310ad526c071f7483de4cd1a
    mips architecture (MIPS (Big Endian))
        Size/MD5 checksum:  1003816 f895a8bc714e9c373ee80f736b5af00b
        Size/MD5 checksum:  2262266 004484e816d4fe5ff03fe6d7df38d7b7
        Size/MD5 checksum:  1692606 e8273f5d123f892a81a155f14ba19b50
        Size/MD5 checksum:   875558 44074bce1cde4281c5abcf45817f429d
        Size/MD5 checksum:   580130 b6b810d1c39164747e3ebc9df4903974
    mipsel architecture (MIPS (Little Endian))
        Size/MD5 checksum:   566168 97963ca9b6ada94445fb25b3126655e9
        Size/MD5 checksum:   992712 41c2bbe984553d693f21c3ec349ea465
        Size/MD5 checksum:  2255558 3c63936cd511975291b4230bef1a2e3b
        Size/MD5 checksum:   860506 d580fbeed6efd734245ea7a7bed225bb
        Size/MD5 checksum:  1649300 3315d1406f995f5b6d2a4f958976a794
    powerpc architecture (PowerPC)
        Size/MD5 checksum:  1002022 b2749639425c3a8ac493e072cfffb358
        Size/MD5 checksum:   895460 e15fbbbbcfe17e82bacc07f6febd9707
        Size/MD5 checksum:   585320 61488ea7f54b55a21f7147fe5bc3b0f0
        Size/MD5 checksum:  1728384 539ee1a3fe7d9b89034ebfe3c1091b6f
        Size/MD5 checksum:  2210792 82e9e27c6083a95c76c5817f9604178f
    s390 architecture (IBM S/390)
        Size/MD5 checksum:   643008 4861c78ea63b6c3c08c22a0c5326d981
        Size/MD5 checksum:  1632976 01d289d460622382b59d07950305764f
        Size/MD5 checksum:   951404 d92bb390489bed0abff58f7a1ceade6b
        Size/MD5 checksum:  1014308 487c24f2af25797a857814af7c9c0d0b
        Size/MD5 checksum:  2193782 f1fe472c802e929a57bd8c8560bd3009
    sparc architecture (Sun SPARC/UltraSPARC)
        Size/MD5 checksum:  4091340 970453ebfab8152c9c44ae210fbaa2a4
        Size/MD5 checksum:   539054 7be1258f74165c4b037e202d2048f8ce
        Size/MD5 checksum:  1010536 6444d6cc6fd838c82716462aacd1cf84
        Size/MD5 checksum:  2108000 ab0d0ccc72764a26b7767cace520b269
        Size/MD5 checksum:  2126386 61ddc204ee650cdd0f2b56e358134e2b
      These files will probably be moved into the stable distribution on
      its next update.
    - ---------------------------------------------------------------------------------
    For apt-get: deb stable/updates main
    For dpkg-ftp: dists/stable/updates/main
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