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From: bugzillaredhat.com
Date: Tue Jan 15 2002 - 02:55:59 CST

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                       Red Hat, Inc. Red Hat Security Advisory

    Synopsis: Updated sudo package is available
    Advisory ID: RHSA-2002:013-03
    Issue date: 2002-01-14
    Updated on: 2002-01-14
    Product: Red Hat Powertools
    Keywords: sudo environment root exploit
    Cross references: RHSA-2002:011

    1. Topic:

    This updated sudo package fixes a potential local root exploit.

    2. Relevant releases/architectures:

    Red Hat Powertools 6.2 - alpha, i386, sparc

    3. Problem description:

    Versions of sudo prior to 1.6.4 would not clear the environment before
    sending an email notification about unauthorized sudo attempts, making it
    possible for an attacker to supply parameters to the mail program. In the
    worst case, this could lead to a local root exploit.

    Users of sudo are advised to upgrade to version 1.6.4, which is not
    vulnerable to this issue.

    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. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

    6. RPMs required:

    Red Hat Powertools 6.2:





    7. Verification:

    MD5 sum Package Name
    f392e76c338e57c92d86d392ec79bae8 6.2/en/powertools/SRPMS/sudo-1.6.4-0.6x.2.src.rpm
    72db8fbf661746bebbab87de50183b35 6.2/en/powertools/alpha/sudo-1.6.4-0.6x.2.alpha.rpm
    78c9a8dcd055d709030b072dc44259bb 6.2/en/powertools/i386/sudo-1.6.4-0.6x.2.i386.rpm
    7ff399944c2185843c76533b97a06528 6.2/en/powertools/sparc/sudo-1.6.4-0.6x.2.sparc.rpm

    These packages are GPG signed by Red Hat, Inc. for security. Our key
    is available at:

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

    8. References:


    Copyright(c) 2000, 2001, 2002 Red Hat, Inc.