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Ubuntu: 984-1: LFTP vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Ubuntu It was discovered that LFTP incorrectly filtered filenames suggestedby Content-Disposition headers. If a user or automated system were trickedinto downloading a file from a malicious site, a remote attacker couldcreate the file with an arbitrary name, such as a dotfile, and possibly runarbitrary code. [More...]
===========================================================
Ubuntu Security Notice USN-984-1         September 07, 2010
lftp vulnerability
CVE-2010-2251
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 8.04 LTS
Ubuntu 9.04
Ubuntu 9.10
Ubuntu 10.04 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 8.04 LTS:
  lftp                            3.6.1-1ubuntu0.1

Ubuntu 9.04:
  lftp                            3.7.8-1ubuntu0.1

Ubuntu 9.10:
  lftp                            3.7.15-1ubuntu2.1

Ubuntu 10.04 LTS:
  lftp                            4.0.2-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

ATTENTION: This update changes previous behaviour by ignoring the filename
supplied by servers in Content-Disposition headers. To re-enable previous
behaviour, use the new xfer:auto-rename setting.

Details follow:

It was discovered that LFTP incorrectly filtered filenames suggested
by Content-Disposition headers. If a user or automated system were tricked
into downloading a file from a malicious site, a remote attacker could
create the file with an arbitrary name, such as a dotfile, and possibly run
arbitrary code.


Updated packages for Ubuntu 8.04 LTS:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1.diff.gz
      Size/MD5:    13383 dfc4f52d9d2a2a0798d6b3fe9e53e9ca
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1.dsc
      Size/MD5:      735 c437fe420a9ea04dae271f3bc5156f48
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.6.1.orig.tar.gz
      Size/MD5:  1806782 cb074387f2516efe6abe5664af5504f9

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1_amd64.deb
      Size/MD5:   433588 bf2ccb726c6f658caa3c5c6aa029257b

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1_i386.deb
      Size/MD5:   398738 d1ec62b4b33785c745e7d10ca30f90cb

  lpia architecture (Low Power Intel Architecture):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1_lpia.deb
      Size/MD5:   405662 a71e74893407cba0d9ef96c402ac60e3

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1_powerpc.deb
      Size/MD5:   428536 522aa38b50d4e5b01e92680a14dcb9d7

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.6.1-1ubuntu0.1_sparc.deb
      Size/MD5:   392686 0004e5ca7e3fcaab3b1b10f431655670

Updated packages for Ubuntu 9.04:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1.diff.gz
      Size/MD5:    14075 b04d88a4d5afefd2cf2cc018da908082
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1.dsc
      Size/MD5:     1151 4b8c86550b9d42c9d9b2677868e9e462
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.8.orig.tar.gz
      Size/MD5:  1920121 014a4ac6b9ea4016d5cd64afe0397b89

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1_amd64.deb
      Size/MD5:   470430 46a72bd567b2ee6c9dce31f1583daf4a

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1_i386.deb
      Size/MD5:   401102 1e0b78a5b2659c8e81cde7d6fed715ef

  lpia architecture (Low Power Intel Architecture):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1_lpia.deb
      Size/MD5:   404420 c6e1cec2e0fce91b5c7b3bd696b6a7ac

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1_powerpc.deb
      Size/MD5:   425506 02497ad03d03a35204e820f94b951624

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.8-1ubuntu0.1_sparc.deb
      Size/MD5:   393988 90876d9d92e53ad028be5feedce5772e

Updated packages for Ubuntu 9.10:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1.diff.gz
      Size/MD5:    15248 10d56523f7ca48b4f7ca7b12b54acdc0
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1.dsc
      Size/MD5:     1188 24cc77bbaaaf15083280ee374b74e952
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.15.orig.tar.gz
      Size/MD5:  2058252 6c43ffdb59234ff0533cfdda0c3c305c

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1_amd64.deb
      Size/MD5:   475460 a7ec4eec5d4c1b7ef1a2219859f30176

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1_i386.deb
      Size/MD5:   402688 54fa38a65903bd2c349d34632181a897

  lpia architecture (Low Power Intel Architecture):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1_lpia.deb
      Size/MD5:   409754 e1a502620c2f43098094c57d76701f0b

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1_powerpc.deb
      Size/MD5:   428098 085709c6757b7eab7b4a50e0a7042e3a

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_3.7.15-1ubuntu2.1_sparc.deb
      Size/MD5:   399942 aca438001e1fd5e67aa4b24cb0e73339

Updated packages for Ubuntu 10.04:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1.diff.gz
      Size/MD5:    14333 b8eaaa8956251f2aef43d311e938d64f
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1.dsc
      Size/MD5:     1162 a5f76a996c9e576d10bf7feeaf409950
    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_4.0.2.orig.tar.gz
      Size/MD5:  2156591 664fd567bb49e1e4dea1ba37430a8449

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1_amd64.deb
      Size/MD5:   511634 d594a860b7d9d9be923b6e6fa9216ba0

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1_i386.deb
      Size/MD5:   432956 75e0e9565d5f891979ea8247628f2a92

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1_powerpc.deb
      Size/MD5:   460922 b64331d0f6056ab5803bf71a752f8a55

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/l/lftp/lftp_4.0.2-1ubuntu0.1_sparc.deb
      Size/MD5:   439560 16849aeada278a342944dd87df4baed6




 
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