Linux Security
    Linux Security
    Linux Security

    Debian: 'wwwoffle' Improper input handling vulnerability

    Date 06 Aug 2002
    Posted By LinuxSecurity Advisories
    The web proxy didn'thandle input data with negative Content-Length settings properly whichcauses the processing child to crash.
    Debian Security Advisory DSA 144-1                     This email address is being protected from spambots. You need JavaScript enabled to view it. Martin Schulze
    August 6th, 2002
    Package        : wwwoffle
    Vulnerability  : improper input handling
    Problem-Type   : local
    Debian-specific: no
    CVE Id         : CAN-2002-0818
    A problem with wwwoffle has been discovered.  The web proxy didn't
    handle input data with negative Content-Length settings properly which
    causes the processing child to crash.  It is at this time not obvious
    how this can lead to an exploitable vulnerability; however, it's better
    to be safe than sorry, so here's an update.
    Additionally, in the woody version empty passwords will be treated as
    wrong when trying to authenticate.  In the woody version we also
    replaced CanonicaliseHost() with the latest routine from 2.7d, offered
    by upstream.  This stops bad IPv6 format IP addresses in URLs from
    causing problems (memory overwriting, potential exploits).
    This problem has been fixed in version 2.5c-10.4 for the old stable
    distribution (potato), in version 2.7a-1.2 for the current stable
    distribution (woody) and in version 2.7d-1 for the unstable
    distribution (sid).
    We recommend that you upgrade your wwwoffle packages.
    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 2.2 alias potato
      Source archives:
    Size/MD5 checksum:      576 be6e528ce89bf62fa43f0df357cc079b
    Size/MD5 checksum:    42169 65906133e7bb10d41cd70f2c828b520a
    Size/MD5 checksum:   414642 4f0b9e36537dd39c02bd8a2477740cc5
      Alpha architecture:
    Size/MD5 checksum:   641192 c4502218021ee68a971ffb66851724f4
      ARM architecture:
    Size/MD5 checksum:   532172 954b2744514ececf82b131c967a3f800
      Intel IA-32 architecture:
    Size/MD5 checksum:   514316 9130724c8fe2d8af0f55acc1876c06a0
      Motorola 680x0 architecture:
    Size/MD5 checksum:   500890 b4d8f2336053d8926f024422e14f2b3e
      PowerPC architecture:
    Size/MD5 checksum:   559134 eaef2555bace43df204ed68ec2264ca6
      Sun Sparc architecture:
    Size/MD5 checksum:   550050 d1206eec8d49e8407bbe1e8d740e4732
    Debian GNU/Linux 3.0 alias woody
      Source archives:
    Size/MD5 checksum:      570 20b6fb0e853730d5017cd379973edf13
    Size/MD5 checksum:    71141 521096aefb0c0f5d99d2551ecf9c33ca
    Size/MD5 checksum:   846376 53831483996555f8ecd976a02ec5204b
      Alpha architecture:
    Size/MD5 checksum:  1263622 91fc8cceb39b2ed80c0d4545365e8fb6
      ARM architecture:
    Size/MD5 checksum:  1118162 7e718e3593029df74138d910d1a69e34
      Intel IA-32 architecture:
    Size/MD5 checksum:  1076766 05dbb5274e02807291ca9f5a1b6b0667
      Intel IA-64 architecture:
    Size/MD5 checksum:  1376094 2f38fe26d02653eb7fa5de8b6aef59b7
      HP Precision architecture:
    Size/MD5 checksum:  1157098 dc731105d40969a1a17dd50417be13ee
      Motorola 680x0 architecture:
    Size/MD5 checksum:  1066962 e505d6e42b63dade20a9418136be578b
      Big endian MIPS architecture:
    Size/MD5 checksum:  1170084 5b70d729600f7e21c41daf1adf550cfd
      Little endian MIPS architecture:
    Size/MD5 checksum:  1170934 b53381bebd138ba21d630c06021b58a0
      PowerPC architecture:
    Size/MD5 checksum:  1150250 fe7fe230aa611ea6c3331bc692286c15
      IBM S/390 architecture:
    Size/MD5 checksum:  1088814 21667f4861c34ab8c720d2a50a84ec27
      Sun Sparc architecture:
    Size/MD5 checksum:  1146472 65eec1fc427a86a63d3c4ad7f38345d1
      These files will probably be moved into the stable distribution on
      its next revision.
    For apt-get: deb stable/updates main
    For dpkg-ftp: 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

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