Linux Security
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    Linux Security

    Debian: DSA-2085-1: New lftp packages fix file overwrite vulnerability

    Date 03 Aug 2010
    164
    Posted By LinuxSecurity Advisories
    It was discovered that in lftp, a command-line HTTP/FTP client, there is no proper validation of the filename provided by the server through the Content-Disposition header; attackers can use this flaw by suggesting a filename they wish to overwrite on the client machine, and then possibly
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    Debian Security Advisory DSA-2085-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Sebastien Delafond
    August 03, 2010                     https://www.debian.org/security/faq
    - ------------------------------------------------------------------------
    
    Package        : lftp
    Vulnerability  : missing input validation
    Problem type   : remote (local)
    Debian-specific: no
    CVE Id         : CVE-2010-2251
    
    It was discovered that in lftp, a command-line HTTP/FTP client, there is
    no proper validation of the filename provided by the server through the
    Content-Disposition header; attackers can use this flaw by suggesting a
    filename they wish to overwrite on the client machine, and then possibly
    execute arbitrary code (for instance if the attacker elects to write a
    dotfile in a home directory).
    
    For the stable distribution (lenny), this problem has been fixed in
    version 3.7.3-1+lenny1.
    
    For the testing distribution (squeeze), this problem has been fixed in
    version 4.0.6-1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 4.0.6-1.
    
    We recommend that you upgrade your lftp packages.
    
    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 5.0 alias lenny
    - --------------------------------
    
    Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
    
    Source archives:
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1.dsc
        Size/MD5 checksum:     1059 64112d74da53a2b3fc9336618115e1eb
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1.diff.gz
        Size/MD5 checksum:    13674 09040587c1e33a732682d425a3627da2
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3.orig.tar.gz
        Size/MD5 checksum:  1844300 576a7b1249038ba761325671dd2eba26
    
    alpha architecture (DEC Alpha)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_alpha.deb
        Size/MD5 checksum:   711424 91c615f46c5dc48adc6dd45d20076b9a
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_amd64.deb
        Size/MD5 checksum:   656172 15b40a343fecd7984b95e32dcda6eeed
    
    arm architecture (ARM)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_arm.deb
        Size/MD5 checksum:   574538 63404d61be53f9d459ee8171e027b9c2
    
    armel architecture (ARM EABI)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_armel.deb
        Size/MD5 checksum:   581470 7d80d23b595a9a087c76b6bcdf83e285
    
    hppa architecture (HP PA RISC)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_hppa.deb
        Size/MD5 checksum:   671790 1cebd061da662b9cf2479eeea5c8f9a1
    
    i386 architecture (Intel ia32)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_i386.deb
        Size/MD5 checksum:   586716 e86f9d7ae3e182c90f85b1f92924ba1c
    
    ia64 architecture (Intel ia64)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_ia64.deb
        Size/MD5 checksum:   877390 ae790318fc5101487f6871bc108ae091
    
    mips architecture (MIPS (Big Endian))
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_mips.deb
        Size/MD5 checksum:   649034 334ee6e763e7de4c1efd7b55875e1d04
    
    mipsel architecture (MIPS (Little Endian))
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_mipsel.deb
        Size/MD5 checksum:   647518 409d0d333d2370f7003ff54a4a11cab3
    
    powerpc architecture (PowerPC)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_powerpc.deb
        Size/MD5 checksum:   613568 9bd37572fc37a038c5f17bb626a72634
    
    s390 architecture (IBM S/390)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_s390.deb
        Size/MD5 checksum:   633538 e7b2bd269c910bd39c6cd924b62b4059
    
    sparc architecture (Sun SPARC/UltraSPARC)
    
      https://security.debian.org/pool/updates/main/l/lftp/lftp_3.7.3-1+lenny1_sparc.deb
        Size/MD5 checksum:   585096 85f9f06f175d544e0ac380a29e2e00e3
    
    
      These files will probably be moved into the stable distribution on
      its next update.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb https://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and https://packages.debian.org/
    

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