Ubuntu: OpenSSH update

    Date14 May 2008
    CategoryUbuntu
    5949
    Posted ByLinuxSecurity Advisories
    Matt Zimmerman discovered that entries in ~/.ssh/authorized_keys with options (such as "no-port-forwarding" or forced commands) were ignored by the new ssh-vulnkey tool introduced in OpenSSH (see USN-612-2). This could cause some compromised keys not to be listed in ssh-vulnkey's output.
    =========================================================== 
    Ubuntu Security Notice USN-612-5               May 14, 2008
    openssh update
    https://launchpad.net/bugs/230029
    http://www.ubuntu.com/usn/usn-612-2
    ===========================================================
    
    A security issue affects the following Ubuntu releases:
    
    Ubuntu 7.04
    Ubuntu 7.10
    Ubuntu 8.04 LTS
    
    This advisory also applies to the corresponding versions of
    Kubuntu, Edubuntu, and Xubuntu.
    
    The problem can be corrected by upgrading your system to the
    following package versions:
    
    Ubuntu 7.04:
      openssh-client                  1:4.3p2-8ubuntu1.4
      openssh-client-udeb             1:4.3p2-8ubuntu1.4
    
    Ubuntu 7.10:
      openssh-client                  1:4.6p1-5ubuntu0.5
      openssh-client-udeb             1:4.6p1-5ubuntu0.5
    
    Ubuntu 8.04 LTS:
      openssh-client                  1:4.7p1-8ubuntu1.2
      openssh-client-udeb             1:4.7p1-8ubuntu1.2
    
    After performing a standard system upgrade, users are encouraged to
    re-run ssh-vulnkey on their systems.
    
    Details follow:
    
    Matt Zimmerman discovered that entries in ~/.ssh/authorized_keys
    with options (such as "no-port-forwarding" or forced commands) were
    ignored by the new ssh-vulnkey tool introduced in OpenSSH (see
    USN-612-2). This could cause some compromised keys not to be
    listed in ssh-vulnkey's output.
    
    This update also adds more information to ssh-vulnkey's manual page.
    
    Original advisory details:
    
     A weakness has been discovered in the random number generator used
     by OpenSSL on Debian and Ubuntu systems.  As a result of this
     weakness, certain encryption keys are much more common than they
     should be, such that an attacker could guess the key through a
     brute-force attack given minimal knowledge of the system.  This
     particularly affects the use of encryption keys in OpenSSH, OpenVPN
     and SSL certificates.
    
    
    Updated packages for Ubuntu 7.04:
    
      Source archives:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2-8ubuntu1.4.diff.gz
          Size/MD5:   275922 b4c4369358cb99b5b7310671b4b6c644
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2-8ubuntu1.4.dsc
          Size/MD5:     1074 b62e8d1771f57591e38883630e8909c1
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2.orig.tar.gz
          Size/MD5:   920186 239fc801443acaffd4c1f111948ee69c
    
      Architecture independent packages:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh_4.3p2-8ubuntu1.4_all.deb
          Size/MD5:     1088 a41a7529e7dd57d65732a87fd4d12b1a
        http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/ssh-krb5_4.3p2-8ubuntu1.4_all.deb
          Size/MD5:    93516 1f18571e095d82d33d59a4b18ea1131d
    
      amd64 architecture (Athlon64, Opteron, EM64T Xeon):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.4_amd64.udeb
          Size/MD5:   173114 745de83450fd428f59b49819180ea6e5
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.4_amd64.deb
          Size/MD5:   739984 c2b5359b14584f2ddd0a127b1e54ab05
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.4_amd64.udeb
          Size/MD5:   185950 1e400a17bef0a1a046e3c6fe300d6cf1
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.4_amd64.deb
          Size/MD5:   255684 ecffa0f893439bf7aa9dfa7794bb5865
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.4_amd64.deb
          Size/MD5:   101900 07669fcf7d23a6e2f2790b5024e25107
    
      i386 architecture (x86 compatible Intel/AMD):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.4_i386.udeb
          Size/MD5:   156808 50fb7499a1b3eaed7ce807d3159e901f
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.4_i386.deb
          Size/MD5:   701964 93e2dda8a8bba51d2e1605960ed17222
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.4_i386.udeb
          Size/MD5:   165478 3909dc0d1a3db832846523ecba68ed71
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.4_i386.deb
          Size/MD5:   238158 38ac65e30b8c84b66ab8f982a630144d
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.4_i386.deb
          Size/MD5:   101600 2f46f59002999da1d748a602d9df93eb
    
      powerpc architecture (Apple Macintosh G3/G4/G5):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.4_powerpc.udeb
          Size/MD5:   178914 5f6bfcb0dfa67657a8af8b198d88189f
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.4_powerpc.deb
          Size/MD5:   767888 b7456adaa4daf3d37f43d872876251dd
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.4_powerpc.udeb
          Size/MD5:   184134 42cbfb13531030487616726f2a853c1b
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.4_powerpc.deb
          Size/MD5:   259740 eb05ac7cbce7b5ef92055775e9c45f67
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.4_powerpc.deb
          Size/MD5:   104364 3746fc6939f23cb8233daba48f784848
    
      sparc architecture (Sun SPARC/UltraSPARC):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.4_sparc.udeb
          Size/MD5:   164244 3579357d22d64142d52d8acd4e393921
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.4_sparc.deb
          Size/MD5:   751848 23d4205b7464735b63ecd28f0b789c02
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.4_sparc.udeb
          Size/MD5:   172576 e12ca4505449cb662a293d720e4fce4e
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.4_sparc.deb
          Size/MD5:   263476 276993c59b460c401920cfabcea46609
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.4_sparc.deb
          Size/MD5:   101842 a8e676070f9512084d59d756f8a9f409
    
    Updated packages for Ubuntu 7.10:
    
      Source archives:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.6p1-5ubuntu0.5.diff.gz
          Size/MD5:   195823 5e9c4f68f3cd8bf5da85295ada5e0b81
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.6p1-5ubuntu0.5.dsc
          Size/MD5:     1169 b9acd86dd071c671af4187c47185f851
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.6p1.orig.tar.gz
          Size/MD5:   946439 cee58cd226138191561fa2d484e18f49
    
      Architecture independent packages:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh_4.6p1-5ubuntu0.5_all.deb
          Size/MD5:     1094 206c8e29f1a6dfb217c2d3d90d44bd79
        http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/ssh-krb5_4.6p1-5ubuntu0.5_all.deb
          Size/MD5:    80726 a49a595a3a8cfe999f1dbd26c1731f89
    
      amd64 architecture (Athlon64, Opteron, EM64T Xeon):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.6p1-5ubuntu0.5_amd64.udeb
          Size/MD5:   176418 362c6c124bbb2705f0d9c79132bf97a3
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.6p1-5ubuntu0.5_amd64.deb
          Size/MD5:   747150 6e9a7a119044564417b8968b980e26f1
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.6p1-5ubuntu0.5_amd64.udeb
          Size/MD5:   193380 1ecfc5db02898f44ed7391dc3e9b8403
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.6p1-5ubuntu0.5_amd64.deb
          Size/MD5:   268756 104dff635669efaed7d6a77356ca0f8e
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.6p1-5ubuntu0.5_amd64.deb
          Size/MD5:    88872 5b1a65df20e6ea4790be10e17c428fbc
    
      i386 architecture (x86 compatible Intel/AMD):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.6p1-5ubuntu0.5_i386.udeb
          Size/MD5:   158796 2285a51be1c93f2b34d67f15e6fdbb82
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.6p1-5ubuntu0.5_i386.deb
          Size/MD5:   706228 0631165438b1766e0db78765bfdb060e
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.6p1-5ubuntu0.5_i386.udeb
          Size/MD5:   171690 268e919d460622342f3b21d3aa9e79b5
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.6p1-5ubuntu0.5_i386.deb
          Size/MD5:   249768 378a2928fa89616f8b07a352c3e175d3
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.6p1-5ubuntu0.5_i386.deb
          Size/MD5:    88516 d8c693407af5aaf4e102461171f3ee2a
    
      lpia architecture (Low Power Intel Architecture):
    
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client-udeb_4.6p1-5ubuntu0.5_lpia.udeb
          Size/MD5:   158874 3cca405136fb0a926c931140297f8288
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client_4.6p1-5ubuntu0.5_lpia.deb
          Size/MD5:   677026 5b75905823737b22f9d088596109b003
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server-udeb_4.6p1-5ubuntu0.5_lpia.udeb
          Size/MD5:   171276 944b04a5ab7da2dea705b306717f0784
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server_4.6p1-5ubuntu0.5_lpia.deb
          Size/MD5:   243102 c465a99059c88b98df2dc3dee60ca4e9
        http://ports.ubuntu.com/pool/main/o/openssh/ssh-askpass-gnome_4.6p1-5ubuntu0.5_lpia.deb
          Size/MD5:    88558 5f792ee09a6c0237072f84c1f95b3f15
    
      powerpc architecture (Apple Macintosh G3/G4/G5):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.6p1-5ubuntu0.5_powerpc.udeb
          Size/MD5:   180852 7a253eac52ef9708fcd5d5f689f05018
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.6p1-5ubuntu0.5_powerpc.deb
          Size/MD5:   774340 395be37533f4edc219863fd9bba242a6
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.6p1-5ubuntu0.5_powerpc.udeb
          Size/MD5:   190236 f3063bd6ad4ebc74c6232515276e4114
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.6p1-5ubuntu0.5_powerpc.deb
          Size/MD5:   272004 2d6a98684f6e915c82b958ca7823d237
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.6p1-5ubuntu0.5_powerpc.deb
          Size/MD5:    91234 f3e1454cb89fea2dbdd20fcbfcd52386
    
      sparc architecture (Sun SPARC/UltraSPARC):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.6p1-5ubuntu0.5_sparc.udeb
          Size/MD5:   166886 7895b2872ae485b385039e760d5f44ec
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.6p1-5ubuntu0.5_sparc.deb
          Size/MD5:   759160 129a2a85c91eb3f8d5a1165cef9391fb
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.6p1-5ubuntu0.5_sparc.udeb
          Size/MD5:   179100 9bbca7ca7ecb4e4fa9e16cfe531911c4
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.6p1-5ubuntu0.5_sparc.deb
          Size/MD5:   276562 0a5a7c1f1af8d5d4b5928d932b9f8a33
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.6p1-5ubuntu0.5_sparc.deb
          Size/MD5:    88840 bd7bc566ead7a834eae8519ef06db84c
    
    Updated packages for Ubuntu 8.04 LTS:
    
      Source archives:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.7p1-8ubuntu1.2.diff.gz
          Size/MD5:   209139 80acb15215b83533f187fac836e24ca1
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.7p1-8ubuntu1.2.dsc
          Size/MD5:     1135 6e43d250b57c64d6b942083668589f97
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.7p1.orig.tar.gz
          Size/MD5:  1009361 bea83d2e0f9ac7b3d4393d693e68b5c1
    
      Architecture independent packages:
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh_4.7p1-8ubuntu1.2_all.deb
          Size/MD5:     1084 0f68b9046c74db0e57bddd6c1b739bbf
        http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/ssh-krb5_4.7p1-8ubuntu1.2_all.deb
          Size/MD5:    88848 f6e0f4ef0046a7897736c46cc108508a
    
      amd64 architecture (Athlon64, Opteron, EM64T Xeon):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.7p1-8ubuntu1.2_amd64.udeb
          Size/MD5:   179260 f2a58225ba895c261ef823086be965c5
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.7p1-8ubuntu1.2_amd64.deb
          Size/MD5:   760846 c727a95841f0d0c94f114884e6a99ac0
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.7p1-8ubuntu1.2_amd64.udeb
          Size/MD5:   195496 62cfa3d52ce0918f88787b30cc8b7e25
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.7p1-8ubuntu1.2_amd64.deb
          Size/MD5:   272818 8f3310bde9e7420d2a698b055ea73ecb
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.7p1-8ubuntu1.2_amd64.deb
          Size/MD5:    96744 c3a3f0eb608c9c1a9ca0e35061494415
    
      i386 architecture (x86 compatible Intel/AMD):
    
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.7p1-8ubuntu1.2_i386.udeb
          Size/MD5:   161824 f516011da3156b43ecdfa2724e63fbb9
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.7p1-8ubuntu1.2_i386.deb
          Size/MD5:   720448 b1945e94fa0397da83ef5af705ae1f26
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.7p1-8ubuntu1.2_i386.udeb
          Size/MD5:   174332 3604f10b4e2619edce52f50303a98881
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.7p1-8ubuntu1.2_i386.deb
          Size/MD5:   254020 6710da9f44ac6e18a4627afbb7505f26
        http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.7p1-8ubuntu1.2_i386.deb
          Size/MD5:    96384 dd61e122cc6e69fd6ea61ec368b35741
    
      lpia architecture (Low Power Intel Architecture):
    
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client-udeb_4.7p1-8ubuntu1.2_lpia.udeb
          Size/MD5:   161636 65e704f5528a147579ae40de2c487765
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client_4.7p1-8ubuntu1.2_lpia.deb
          Size/MD5:   713956 a619b1749570ce9864b343132f1e5d13
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server-udeb_4.7p1-8ubuntu1.2_lpia.udeb
          Size/MD5:   174210 b31d7b694d937f0025ff96069d334158
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server_4.7p1-8ubuntu1.2_lpia.deb
          Size/MD5:   252856 368e0e5fa2665faadfd8ad63341acf87
        http://ports.ubuntu.com/pool/main/o/openssh/ssh-askpass-gnome_4.7p1-8ubuntu1.2_lpia.deb
          Size/MD5:    96412 ebe007544778b04ec01a89a1e0e3e2bc
    
      powerpc architecture (Apple Macintosh G3/G4/G5):
    
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client-udeb_4.7p1-8ubuntu1.2_powerpc.udeb
          Size/MD5:   185712 bdbaeeea99557baf7c19e2a0f70abd2a
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client_4.7p1-8ubuntu1.2_powerpc.deb
          Size/MD5:   797596 2129e032f78d1d4e13e1890c3bf7f85f
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server-udeb_4.7p1-8ubuntu1.2_powerpc.udeb
          Size/MD5:   194522 e9263b742d7b7319d598cb44c4049f1d
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server_4.7p1-8ubuntu1.2_powerpc.deb
          Size/MD5:   279014 4f5e89c16964c533ad0fafd1d7e2da60
        http://ports.ubuntu.com/pool/main/o/openssh/ssh-askpass-gnome_4.7p1-8ubuntu1.2_powerpc.deb
          Size/MD5:    99164 9511ff26b13272bceb56c98066e6c4a9
    
      sparc architecture (Sun SPARC/UltraSPARC):
    
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client-udeb_4.7p1-8ubuntu1.2_sparc.udeb
          Size/MD5:   169976 0b6c2aa06082048a1df1c44e924a385c
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-client_4.7p1-8ubuntu1.2_sparc.deb
          Size/MD5:   723794 42355feee72c77139e88c383fd33d920
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server-udeb_4.7p1-8ubuntu1.2_sparc.udeb
          Size/MD5:   181574 d5e603a641b3238f172715d71624fbc9
        http://ports.ubuntu.com/pool/main/o/openssh/openssh-server_4.7p1-8ubuntu1.2_sparc.deb
          Size/MD5:   258324 871b3c0e5b963225ce9e79d02483de7a
        http://ports.ubuntu.com/pool/main/o/openssh/ssh-askpass-gnome_4.7p1-8ubuntu1.2_sparc.deb
          Size/MD5:    96612 2ed0f8f6827dda7f51c942b1b1533729
    
    
    
    
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