[RHSA-2003:296-01] Updated stunnel packages available

bugzilla_at_redhat.com
Date: 11/24/03

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                       Red Hat Security Advisory

    Synopsis: Updated stunnel packages available
    Advisory ID: RHSA-2003:296-01
    Issue date: 2003-11-24
    Updated on: 2003-11-24
    Product: Red Hat Linux
    Keywords: stunnel signal
    Cross references: RHSA-2003:297
    Obsoletes: RHSA-2003:221
    CVE Names: CAN-2002-1563 CAN-2003-0740
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    1. Topic:

    Updated stunnel packages are now available for Red Hat Linux 7.1, 7.2, 7.3,
    and 8.0 systems. These updates address problems stemming from improper use
    of non-reentrant functions in signal handlers.

    2. Relevant releases/architectures:

    Red Hat Linux 7.1 - i386
    Red Hat Linux 7.2 - i386, ia64
    Red Hat Linux 7.3 - i386
    Red Hat Linux 8.0 - i386

    3. Problem description:

    Stunnel is a wrapper for network connections. It can be used to tunnel an
    unencrypted network connection over an encrypted connection (encrypted
    using SSL or TLS) or to provide an encrypted means of connecting to
    services that do not natively support encryption.

    A previous advisory provided updated packages to address re-entrancy
    problems in stunnel's signal-handling routines. These updates did not
    address other bugs that were found by Steve Grubb, and introduced an
    additional bug, which was fixed in stunnel 3.26.

    All users should upgrade to these errata packages, which address these
    issues by updating stunnel to version 3.26.

    NOTE: After upgrading, any instances of stunnel configured to run in daemon
    mode should be restarted, and any active network connections that are
    currently being serviced by stunnel should be terminated and reestablished.

    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:

    up2date

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

    If up2date fails to connect to Red Hat Network due to SSL Certificate
    Errors, you need to install a version of the up2date client with an updated
    certificate. The latest version of up2date is available from the Red Hat
    FTP site and may also be downloaded directly from the RHN website:

    https://rhn.redhat.com/help/latest-up2date.pxt

    5. RPMs required:

    Red Hat Linux 7.1:

    SRPMS:
    ftp://updates.redhat.com/7.1/en/os/SRPMS/stunnel-3.26-1.7.1.src.rpm

    i386:
    ftp://updates.redhat.com/7.1/en/os/i386/stunnel-3.26-1.7.1.i386.rpm

    Red Hat Linux 7.2:

    SRPMS:
    ftp://updates.redhat.com/7.2/en/os/SRPMS/stunnel-3.26-1.7.3.src.rpm

    i386:
    ftp://updates.redhat.com/7.2/en/os/i386/stunnel-3.26-1.7.3.i386.rpm

    ia64:
    ftp://updates.redhat.com/7.2/en/os/ia64/stunnel-3.26-1.7.3.ia64.rpm

    Red Hat Linux 7.3:

    SRPMS:
    ftp://updates.redhat.com/7.3/en/os/SRPMS/stunnel-3.26-1.7.3.src.rpm

    i386:
    ftp://updates.redhat.com/7.3/en/os/i386/stunnel-3.26-1.7.3.i386.rpm

    Red Hat Linux 8.0:

    SRPMS:
    ftp://updates.redhat.com/8.0/en/os/SRPMS/stunnel-3.26-1.8.0.src.rpm

    i386:
    ftp://updates.redhat.com/8.0/en/os/i386/stunnel-3.26-1.8.0.i386.rpm

    6. Verification:

    MD5 sum Package Name
    - --------------------------------------------------------------------------
    cfd2b7c9519812d58a945d4b5e189fdd 7.1/en/os/SRPMS/stunnel-3.26-1.7.1.src.rpm
    f05723a19a2990ce17ded0ce817890b5 7.1/en/os/i386/stunnel-3.26-1.7.1.i386.rpm
    f1c75122248f440e96adff582de64520 7.2/en/os/SRPMS/stunnel-3.26-1.7.3.src.rpm
    e307840b930fc50e4bb2b61a0578af5a 7.2/en/os/i386/stunnel-3.26-1.7.3.i386.rpm
    cd223922c7a690d7dfcfdd2e49c49e24 7.2/en/os/ia64/stunnel-3.26-1.7.3.ia64.rpm
    f1c75122248f440e96adff582de64520 7.3/en/os/SRPMS/stunnel-3.26-1.7.3.src.rpm
    e307840b930fc50e4bb2b61a0578af5a 7.3/en/os/i386/stunnel-3.26-1.7.3.i386.rpm
    071ab6a4091737a4292e631bd7490975 8.0/en/os/SRPMS/stunnel-3.26-1.8.0.src.rpm
    d3718eebbd8b921de713c4914da22dec 8.0/en/os/i386/stunnel-3.26-1.8.0.i386.rpm

    These packages are GPG signed by Red Hat for security. Our key is
    available from https://www.redhat.com/security/keys.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:

    http://marc.theaimsgroup.com/?l=stunnel-users&m=105980139926784
    http://marc.theaimsgroup.com/?l=stunnel-users&m=106221975232250
    http://marc.theaimsgroup.com/?l=bugtraq&m=106260760211958
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1563
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0740

    8. Contact:

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

    Copyright 2003 Red Hat, Inc.
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