Debian: DSA-1817-1: New ctorrent packages fix arbitrary code execution

    Date17 Jun 2009
    CategoryDebian
    27
    Posted ByLinuxSecurity Advisories
    Michael Brooks discovered that ctorrent, a text-mode bittorrent client, does not verify the length of file paths in torrent files. An attacker can exploit this via a crafted torrent that contains a long file path to
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    Debian Security Advisory DSA-1817-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                                 Nico Golde
    June 17th, 2009                         http://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : ctorrent
    Vulnerability  : stack-based buffer overflow
    Problem type   : local (remote)
    Debian-specific: no
    Debian bug     : 530255
    CVE ID         : CVE-2009-1759
    
    
    Michael Brooks discovered that ctorrent, a text-mode bittorrent client,
    does not verify the length of file paths in torrent files.  An attacker
    can exploit this via a crafted torrent that contains a long file path to
    execute arbitrary code with the rights of the user opening the file.
    
    
    The oldstable distribution (etch) does not contain ctorrent.
    
    For the stable distribution (lenny), this problem has been fixed in
    version 1.3.4-dnh3.2-1+lenny1.
    
    For the testing distribution (squeeze), this problem will be fixed soon.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 1.3.4-dnh3.2-1.1.
    
    
    We recommend that you upgrade your ctorrent 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
    - --------------------------------
    
    Debian (stable)
    - ---------------
    
    Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
    
    Source archives:
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1.diff.gz
        Size/MD5 checksum:     6427 a8eb130df614638863d1de39f80aeb3c
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1.dsc
        Size/MD5 checksum:     1132 2159a81d35c934811cc4b65a5d51c63e
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2.orig.tar.gz
        Size/MD5 checksum:   201651 8c4605ea3a1f6d09da593c25b5ab7dbd
    
    alpha architecture (DEC Alpha)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_alpha.deb
        Size/MD5 checksum:   124858 5fce08bb15b4706ae4dc25c20a9da7b4
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_amd64.deb
        Size/MD5 checksum:   112618 34ca707d68325c7b3939338d0b0ca7c2
    
    arm architecture (ARM)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_arm.deb
        Size/MD5 checksum:   111212 8e4c1fa0ef849a48d3a87e5f68543520
    
    armel architecture (ARM EABI)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_armel.deb
        Size/MD5 checksum:   109968 60648ec18a34e50b483fbbf3dacba958
    
    hppa architecture (HP PA RISC)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_hppa.deb
        Size/MD5 checksum:   126318 e784df9d63ad73e20cc295f9afd3a436
    
    i386 architecture (Intel ia32)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_i386.deb
        Size/MD5 checksum:   107962 d17a52c0f1c4f78cb912159719eaca5d
    
    ia64 architecture (Intel ia64)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_ia64.deb
        Size/MD5 checksum:   161648 179939230644da247cc342e8b2695df4
    
    mips architecture (MIPS (Big Endian))
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_mips.deb
        Size/MD5 checksum:   123522 efe46dd5e1f6604d01e4e9dccedae3d6
    
    mipsel architecture (MIPS (Little Endian))
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_mipsel.deb
        Size/MD5 checksum:   124204 5af9aa2d675d420684e78250663098a1
    
    powerpc architecture (PowerPC)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_powerpc.deb
        Size/MD5 checksum:   123882 ee2163a4290b1c617e5b0a90caa7b4c4
    
    s390 architecture (IBM S/390)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_s390.deb
        Size/MD5 checksum:   115012 fcb29b56a042601293a48ae9a406fc0b
    
    sparc architecture (Sun SPARC/UltraSPARC)
    
      http://security.debian.org/pool/updates/main/c/ctorrent/ctorrent_1.3.4-dnh3.2-1+lenny1_sparc.deb
        Size/MD5 checksum:   111682 149c6237664380b0d6c6cb74a3006e0d
    
    
      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: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and http://packages.debian.org/
    
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