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Date: Fri Feb 07 2003 - 01:10:04 CST

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                       Red Hat, Inc. Red Hat Security Advisory

    Synopsis: Updated w3m packages fix cross-site scripting issues
    Advisory ID: RHSA-2003:044-20
    Issue date: 0000-01-01
    Updated on: 2003-02-06
    Product: Red Hat Linux
    Keywords: w3m frame html tag flaw:css
    Cross references:
    CVE Names: CAN-2002-1335 CAN-2002-1348

    1. Topic:

    New w3m packages are available that fix two cross-site scripting issues.

    2. Relevant releases/architectures:

    Red Hat Linux 7.0J - i386
    Red Hat Linux 7.2 - i386, ia64
    Red Hat Linux 7.3 - i386
    Red Hat Linux 8.0 - i386

    3. Problem description:

    w3m is a pager with Web browsing capabilities. Two cross-site scripting
    (XSS) issues have been found in w3m.

    An XSS vulnerability in w3m 0.3.2 allows remote attackers to insert
    arbitrary HTML and web script into frames. Frames are disabled by default
    in the version of w3m shipped with Red Hat Linux. Therefore, this problem
    will not appear as long as users do not use w3m with the -F option, or
    enable frame support in either the /etc/w3m/w3mconfig or ~/.w3m/config
    configuration files. The Common Vulnerabilities and Exposures project
    (cve.mitre.org) has assigned the name CAN-2002-1335 to this issue.

    An XSS vulnerability in versions of w3m before allows attackers to
    insert arbitrary HTML and web script into image attributes. The Common
    Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
    CAN-2002-1348 to this issue

    Users of w3m under Red Hat Linux versions 7.0J, 7.2, 7.3, and 8.0 are
    advised to upgrade to the updated packages containing w3m 0.3.1 with
    a patch to correct these issues.

    4. Solution:

    Before applying this update, make sure all previously released errata
    relevant to your system have been applied.

    To update all RPMs for your particular architecture, run:

    rpm -Fvh [filenames]

    where [filenames] is a list of the RPMs you wish to upgrade. Only those
    RPMs which are currently installed will be updated. Those RPMs which are
    not installed but included in the list will not be updated. Note that you
    can also use wildcards (*.rpm) if your current directory *only* contains
    the desired RPMs.

    Please note that this update is also available via Red Hat Network. Many
    people find this an easier way to apply updates. To use Red Hat Network,
    launch the Red Hat Update Agent with the following command:


    This will start an interactive process that will result in the appropriate
    RPMs being upgraded on your system.

    5. RPMs required:

    Red Hat Linux 7.0J:



    Red Hat Linux 7.2:




    Red Hat Linux 7.3:



    Red Hat Linux 8.0:



    6. Verification:

    MD5 sum Package Name
    e9a6c283b284047510efc84c5a367e78 7.0/ja/os/SRPMS/w3m-0.3.1-
    02b64e00eada264f0e5fba3832623eca 7.0/ja/os/i386/w3m-0.3.1-
    1050198ea9b7c9d841fefeec8d4fd64d 7.2/en/os/SRPMS/w3m-0.3.1-4.7.2.src.rpm
    4f04c584240a977e9a6027fd5d9f9238 7.2/en/os/i386/w3m-0.3.1-4.7.2.i386.rpm
    713258f63ed6326ba3faba2c1cfcb81a 7.2/en/os/ia64/w3m-0.3.1-4.7.2.ia64.rpm
    d0719437998424b5872e44ec21681150 7.3/en/os/SRPMS/w3m-0.3.1-4.7x.1.src.rpm
    91a359c78d3d0b546a514d33ab2119ba 7.3/en/os/i386/w3m-0.3.1-4.7x.1.i386.rpm
    2a67b50c7b145253eb63c21072dcde0b 8.0/en/os/SRPMS/w3m-0.3.1-6.src.rpm
    3c79d5d3d0c74262c5b911b78aa7342e 8.0/en/os/i386/w3m-0.3.1-6.i386.rpm

    These packages are GPG signed by Red Hat, Inc. for security. Our key
    is available at http://www.redhat.com/about/contact/pgpkey.html

    You can verify each package with the following command:
        rpm --checksig -v <filename>

    If you only wish to verify that each package has not been corrupted or
    tampered with, examine only the md5sum with the following command:
        md5sum <filename>

    7. References:


    8. Contact:

    The Red Hat security contact is <securityredhat.com>. More contact
    details at http://www.redhat.com/solutions/security/news/contact.html

    Copyright 2003 Red Hat, Inc.

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