The OpenNET Project
 
Search (keywords):  SOFT ARTICLES TIPS & TRICKS SECURITY
LINKS NEWS MAN DOCUMENTATION


SuSE Security Announcement: wwwoffle (SuSE-SA:2002:029)


<< Previous INDEX Search src Set bookmark Go to bookmark Next >>
Date: Thu, 1 Aug 2002 13:52:45 +0200 (CEST)
From: Thomas Biege <[email protected]>
To: [email protected]
Subject: SuSE Security Announcement: wwwoffle (SuSE-SA:2002:029)

-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________

                        SuSE Security Announcement

        Package:                wwwoffle
        Announcement-ID:        SuSE-SA:2002:029
        Date:                   Thursday, Aug 1st 2002 12:30 MEST
        Affected products:      7.1, 7.2, 7.3, 8.0
        Vulnerability Type:     remote privilege escalation
        Severity (1-10):        4
        SuSE default package:   no
        Other affected systems: all systems using wwwoffle

    Content of this advisory:
        1) security vulnerability resolved: insufficient checking of
                                            Content Length value
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds
        3) standard appendix (further information)

______________________________________________________________________________

1)  problem description, brief discussion, solution, upgrade information

    The WWWOFFLE, World Wide Web Offline Explorer, program suite acts as a
    HTTP, FTP and Finger proxy to allow users with dial-up access to the
    internet to do offline WWW browsing.

    The parsing code of wwwoffled that processes HTTP PUT and POST requests
    fails to handle a Content Length value smaller then -1. It is believed
    that an attacker could exploit this bug to gain remote wwwrun access
    to the system wwwoffled is running on.

    The wwwoffle package is not installed by default.
    As temporary workaround the wwwoffle daemon can be disabled the following
    way (as root):
        rcwwwoffle stop
    If wwwoffled is started at boottime, you have to modify your boot
    scripts too. This can be done by using the runlevel editor of yast2.

    All running instances of wwwoffled need to be restarted after updating
    your system (as root):
        rcwwwoffle restart


    Please download the update package for your distribution and verify its
    integrity by the methods listed in section 3) of this announcement.
    Then, install the package using the command "rpm -Fhv file.rpm" to apply
    the update.
    Our maintenance customers are being notified individually. The packages
    are being offered to install from the maintenance web.

    Missing packages will be published as soon as possible.



    i386 Intel Platform:

    SuSE-8.0
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/wwwoffle-2.6d-300.i386.patch.rpm
      841aed6738e45973891a08e8c666a624
    SuSE-8.0
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/wwwoffle-2.6d-300.i386.rpm
      de8e402d077da779070e3e1158b1463f
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/wwwoffle-2.6d-300.src.rpm
      cb35aca6bfd20360883beb025647fabe

    SuSE-7.3
    ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/wwwoffle-2.6d-298.i386.rpm
      08438c130e574eb2f3c9b7c8cc60f45b
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/wwwoffle-2.6d-298.src.rpm
      1a48eda5d2b8032aef96c62cf2472cd1

    SuSE-7.2
    ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/wwwoffle-2.6b-63.i386.rpm
      54ad9710b00030e5402478958545ad73
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/wwwoffle-2.6b-63.src.rpm
      89705ac7a6ce27e8fb8198aef626315a

    SuSE-7.1
    ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/wwwoffle-2.6-20.i386.rpm
      345aeaf33ed09e22cd0d5e2ea9202fef
    source rpm:
    ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/wwwoffle-2.6-20.src.rpm
      1c6a427d71b338a9c0091c4dc5ea1e61



    Sparc Platform:

    SuSE-7.1
    ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/wwwoffle-2.6-18.sparc.rpm
      b525c495f7e47f64cfbe1c364b683d90
    source rpm:
    ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/wwwoffle-2.6-18.src.rpm
      ae9df7749fc38b0a7be2d013eeb5f8fb



    AXP Alpha Platform:

    SuSE-7.1
    ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/wwwoffle-2.6-26.alpha.rpm
      0140df0cf370942f50c9a6af2167b4bc
    source rpm:
    ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/wwwoffle-2.6-26.src.rpm
      e2d72c3e70ef7e083fcd34a788cf1638



    PPC Power PC Platform:

    SuSE-7.3
    ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/wwwoffle-2.6d-207.ppc.rpm
      98bfb93df81b987a93ba5ce8578325c2
    source rpm:
    ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/wwwoffle-2.6d-207.src.rpm
      f8816a3a536a60b72839fe010b8aceeb

    SuSE-7.1
    ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/wwwoffle-2.6-24.ppc.rpm
      4a5f2eb327fa5441a7e9d0f9d0af32f5
    source rpm:
    ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/wwwoffle-2.6-24.src.rpm
      5a31460401e823a4adc17eda39222c1f



______________________________________________________________________________

2)  Pending vulnerabilities in SuSE Distributions and Workarounds:

  - bzip
    The FreeBSD Team discovered some security related bugs in bzip2.
    By exploiting this bugs an attacker could change file permissions or
    overwrite files.
    Bzip got fixed and a new version of the bzip package is available
    on our FTP servers.

  - pam_ldap
    A "format string" bug in pam_ldap's logging functions gots fixed.
    New packages are available on our FTP servers.

  - chfn/util-linux
    Linux distributors have published security announcements about password
    locking race conditions that lead to a local root vulnerability.
    SuSE products are not affected by this weakness because we use the
    user/group management utilities from the shadow package. These utilities
    are not affected.


  - libpng
    libpng is a library that provides functions for applications to handle
    PNG image files (Portable Network Graphics). An overflow vulnerability
    has been found in the libpng library that may make it possible for an
    attacker to run arbitrary code or to crash an application that uses
    the libpng library if the application in question opens a png image file.
    We are in the process of fixing this vulnerability.


______________________________________________________________________________

3)  standard appendix: authenticity verification, additional information

  - Package authenticity verification:

    SuSE update packages are available on many mirror ftp servers all over
    the world. While this service is being considered valuable and important
    to the free and open source software community, many users wish to be
    sure about the origin of the package and its content before installing
    the package. There are two verification methods that can be used
    independently from each other to prove the authenticity of a downloaded
    file or rpm package:
    1) md5sums as provided in the (cryptographically signed) announcement.
    2) using the internal gpg signatures of the rpm package.

    1) execute the command
        md5sum <name-of-the-file.rpm>
       after you downloaded the file from a SuSE ftp server or its mirrors.
       Then, compare the resulting md5sum with the one that is listed in the
       announcement. Since the announcement containing the checksums is
       cryptographically signed (usually using the key [email protected]),
       the checksums show proof of the authenticity of the package.
       We disrecommend to subscribe to security lists which cause the
       email message containing the announcement to be modified so that
       the signature does not match after transport through the mailing
       list software.
       Downsides: You must be able to verify the authenticity of the
       announcement in the first place. If RPM packages are being rebuilt
       and a new version of a package is published on the ftp server, all
       md5 sums for the files are useless.

    2) rpm package signatures provide an easy way to verify the authenticity
       of an rpm package. Use the command
        rpm -v --checksig <file.rpm>
       to verify the signature of the package, where <file.rpm> is the
       filename of the rpm package that you have downloaded. Of course,
       package authenticity verification can only target an un-installed rpm
       package file.
       Prerequisites:
        a) gpg is installed
        b) The package is signed using a certain key. The public part of this
           key must be installed by the gpg program in the directory
           ~/.gnupg/ under the user's home directory who performs the
           signature verification (usually root). You can import the key
           that is used by SuSE in rpm packages for SuSE Linux by saving
           this announcement to a file ("announcement.txt") and
           running the command (do "su -" to be root):
            gpg --batch; gpg < announcement.txt | gpg --import
           SuSE Linux distributions version 7.1 and thereafter install the
           key "[email protected]" upon installation or upgrade, provided that
           the package gpg is installed. The file containing the public key
           is placed at the top-level directory of the first CD (pubring.gpg)
           and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


  - SuSE runs two security mailing lists to which any interested party may
    subscribe:

    [email protected]
        -   general/linux/SuSE security discussion.
            All SuSE security announcements are sent to this list.
            To subscribe, send an email to
                <[email protected]>.

    [email protected]
        -   SuSE's announce-only mailing list.
            Only SuSE's security announcements are sent to this list.
            To subscribe, send an email to
                <[email protected]>.

    For general information or the frequently asked questions (faq)
    send mail to:
        <[email protected]> or
        <[email protected]> respectively.


SuSE's security contact is <[email protected]> or <[email protected]>. The <[email protected]> public key is listed below.
______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SuSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <[email protected]> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <[email protected]> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQGiBDnu9IERBACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff 4JctBsgs47tjmiI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0d M+HFrruCgBlWt6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcO QliHu8jwRQHxlRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrK XBUX+K7u4ifrZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBE D3+D2t1V/f8l0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUd G5sRA/9ovnc1krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NM CC3Kj9aZHfA+ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoE myW/xC1sBbDkDUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNr YWdlIFNpZ25pbmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkD wmcABAsKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6d NfnwI2PAsgCgjH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCe QOMQAAqrpNzOAKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNe LZa/qM2JARUDBRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3t XXaJJp9pHMa4fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBU D9i579uifklLsnr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ3 0kNLWVXWATMnsnT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot 1ZPtB0lniw+/xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpW cRgdn2DUVMmpU661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0E ExECAB0FAjxqqTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1f AJ9dR7saz2KPNwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0E Oe70khAIAISR0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/ HZnh3TwhBIw1FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44h t5h+6HMBzoFCMAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPT tGzcAi2jVl9hl3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM 523AMgpPQtsKm9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q 2Y+GqZ+yAvNWjRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8 QnSs0wwPg3xEullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWaw JxRLKH6Zjo/FaKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ 1sj2xYdB1xO0ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCH ORrNjq9pYWlrxsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1 wwylxadmmJaJHzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQY EQIADAUCOe70kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol 0JdGwACeKTttgeVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAK CRCoTtronIAKyofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3co SPihn1+OBNyZAQ0DNuEtBAAAAQgAoCRcd7SVZEFcumffyEwfLTcXQjhKzOahzxpo omuF+HIyU4AGq+SU8sTZ/1SsjhdzzrSAfv1lETACA+3SmLr5KV40Us1w0UC64cwt A46xowVq1vMlH2Lib+V/qr3b1hE67nMHjysECVx9Ob4gFuKNoR2eqnAaJvjnAT8J /LoUC20EdCHUqn6v+M9t/WZgC+WNR8cq69uDy3YQhDP/nIan6fm2uf2kSV9A7ZxE GrwsWl/WX5Q/sQqMWaU6r4az98X3z90/cN+eJJ3vwtA+rm+nxEvyev+jaLuOQBDf ebh/XA4FZ35xmi+spdiVeJH4F/ubaGlmj7+wDOF3suYAPSXT2QAFEbQlU3VTRSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBzdXNlLmRlPokBFQMFEDbhLUfkWLKHsco8 RQEBVw4H/1vIdiOLX/7hdzYaG9crQVIk3QwaB5eBbjvLEMvuCZHiY2COUg5QdmPQ 8SlWNZ6k4nu1BLcv2g/pymPUWP9fG4tuSnlUJDrWGm3nhyhAC9iudP2u1YQY37Gb B6NPVaZiYMnEb4QYFcqv5c/r2ghSXUTYk7etd6SW6WCOpEqizhx1cqDKNZnsI/1X 11pFcO2N7rc6byDBJ1T+cK+F1Ehan9XBt/shryJmv04nli5CXQMEbiqYYMOu8iaA 8AWRgXPCWqhyGhcVD3LRhUJXjUOdH4ZiHCXaoF3zVPxpeGKEQY8iBrDeDyB3wHmj qY9WCX6cmogGQRgYG6yJqDalLqrDOdmJARUDBRA24S0Ed7LmAD0l09kBAW04B/4p WH3f1vQn3i6/+SmDjGzUu2GWGq6Fsdwo2hVM2ym6CILeow/K9JfhdwGvY8LRxWRL hn09j2IJ9P7H1Yz3qDf10AX6V7YILHtchKT1dcngCkTLmDgC4rs1iAAl3f089sRG BafGPGKv2DQjHfR1LfRtbf0P7c09Tkej1MP8HtQMW9hPkBYeXcwbCjdrVGFOzqx+ AvvJDdT6a+oyRMTFlvmZ83UV5pgoyimgjhWnM1V4bFBYjPrtWMkdXJSUXbR6Q7Pi RZWCzGRzwbaxqpl3rK/YTCphOLwEMB27B4/fcqtBzgoMOiaZA0M5fFoo54KgRIh0 zinsSx2OrWgvSiLEXXYKiEYEEBECAAYFAjseYcMACgkQnkDjEAAKq6ROVACgjhDM /3KM+iFjs5QXsnd4oFPOnbkAnjYGa1J3em+bmV2aiCdYXdOuGn4ZiQCVAwUQN7c7 whaQN/7O/JIVAQEB+QP/cYblSAmPXxSFiaHWB+MiUNw8B6ozBLK0QcMQ2YcL6+Vl D+nSZP20+Ja2nfiKjnibCv5ss83yXoHkYk2Rsa8foz6Y7tHwuPiccvqnIC/c9Cvz dbIsdxpfsi0qWPfvX/jLMpXqqnPjdIZErgxpwujas1n9016PuXA8K3MJwVjCqSKI RgQQEQIABgUCOhpCpAAKCRDHUqoysN/3gCt7AJ9adNQMbmA1iSYcbhtgvx9ByLPI DgCfZ5Wj+f7cnYpFZI6GkAyyczG09sE= =LRKC - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3in Charset: noconv iQEVAwUBPUkbbHey5gA9JdPZAQHQjAf/T/8kVNSdI3w4YRHUqNmTNH/0YUYJTe+G 5zIgkRvsFG1KYBGLlX9D13eeCC0oeDq3A8MngEW5U9LDYYWoUKhYgmJeWMOarwA2 JnqqdFPduaYOlnLZkZSw94kQiBxqU6gF3Qq0NfRrjVMk1JuvwiyFw8nr3fwmPeBY izvpWAhbr3RQvhoCdUigRNCAfTBuQL1WVI3RT15Vrh9WA7sR+1t2FIor4fx2cBCq mRbRWk+qTl2lS3afrjADinNZWIoStE3MNflzUOLB5xsogzsDRcNsOI+dyebBSRqC WTAYE5Lr7QbTYuTUf8425ot1QeoHn1ThrhC9KbzVz8ceHf1MHXScvw== =RSY0 -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege <[email protected]> SuSE Linux AG,Deutschherrnstr. 15-19,90429 Nuernberg Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 83 -- Trete durch die Form ein, und trete aus der Form heraus.

<< Previous INDEX Search src Set bookmark Go to bookmark Next >>



Партнёры:
PostgresPro
Inferno Solutions
Hosting by Hoster.ru
Хостинг:

Закладки на сайте
Проследить за страницей
Created 1996-2024 by Maxim Chirkov
Добавить, Поддержать, Вебмастеру