RedHat: Low: rsh security update

    Date18 May 2005
    CategoryRed Hat
    6038
    Posted ByJoe Shakespeare
    Updated rsh packages that fix various bugs and a theoretical security issue are now available. This update has been rated as having low security impact by the Red Hat Security Response Team
    - ---------------------------------------------------------------------
                       Red Hat Security Advisory
    
    Synopsis:          Low: rsh security update
    Advisory ID:       RHSA-2005:074-01
    Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-074.html
    Issue date:        2005-05-18
    Updated on:        2005-05-18
    Product:           Red Hat Enterprise Linux
    CVE Names:         CAN-2004-0175
    - ---------------------------------------------------------------------
    
    1. Summary:
    
    Updated rsh packages that fix various bugs and a theoretical security issue
    are now available.
    
    This update has been rated as having low security impact by the Red Hat
    Security Response Team
    
    2. Relevant releases/architectures:
    
    Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
    Red Hat Desktop version 3 - i386, x86_64
    Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
    Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
    
    3. Problem description:
    
    The rsh package contains a set of programs that allow users to run
    commands on remote machines, login to other machines, and copy files
    between machines, using the rsh, rlogin, and rcp commands. All three of
    these commands use rhosts-style authentication.
    
    The rcp protocol allows a server to instruct a client to write to arbitrary
    files outside of the current directory.  This could potentially cause a
    security issue if a user uses rcp to copy files from a malicious server. 
    The Common Vulnerabilities and Exposures project (cve.mitre.org) has
    assigned the name CAN-2004-0175 to this issue.
    
    These updated packages also address the following bugs:
    
    The rexec command failed with "Invalid Argument", because the code
    used sigaction() as an unsupported signal.
    
    The rlogind server reported "SIGCHLD set to SIG_IGN but calls wait()"
    message to the system log because the original BSD code was ported
    incorrectly to linux.
    
    The rexecd server did not function on systems where client hostnames were
    not in the DNS service, because server code called gethostbyaddr() for each
    new connection.
    
    The rcp command incorrectly used the "errno" variable and produced
    erroneous error messages.
    
    The rexecd command ignored settings in the /etc/security/limits file,
    because the PAM session was incorrectly initialized.
    
    The rexec command prompted for username and password regardless of the
    ~/.netrc configuration file contents. This updated package contains a patch
    that no longer skips the ~/.netrc file. 
    
    All users of rsh should upgrade to these updated packages, which resolve
    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:
    
    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 Enterprise Linux AS version 3:
    
    SRPMS:
    ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/rsh-0.17-17.6.src.rpm
    9db33654428c9f2a68ae4fc3d3538b45  rsh-0.17-17.6.src.rpm
    
    i386:
    d3c9d0998a481654e6aa70bae6d81284  rsh-0.17-17.6.i386.rpm
    458e22f5bbb542402ff7f1d5b31d8efc  rsh-server-0.17-17.6.i386.rpm
    
    ia64:
    0ef714b4988d67746492c7fcc94c6505  rsh-0.17-17.6.ia64.rpm
    c5ffc16936049d313396840c1340b190  rsh-server-0.17-17.6.ia64.rpm
    
    ppc:
    b95b84629007515d08ebdb9dbfc3ef2f  rsh-0.17-17.6.ppc.rpm
    fb95ecdabcdf4a94d3438d86c66fa10c  rsh-server-0.17-17.6.ppc.rpm
    
    s390:
    3aeade4296a8fbef841988fa0931a627  rsh-0.17-17.6.s390.rpm
    b974c6cfe31f0baa9863d543d4fbbc6c  rsh-server-0.17-17.6.s390.rpm
    
    s390x:
    40007c9ed95ad284c2d6863bff54a69c  rsh-0.17-17.6.s390x.rpm
    63df1e561f4ccd2d0a088e3c419e1647  rsh-server-0.17-17.6.s390x.rpm
    
    x86_64:
    d5a8b840af161bf40970e8d51b5be791  rsh-0.17-17.6.x86_64.rpm
    bc656e79fc3002249f5eb17d4993f67b  rsh-server-0.17-17.6.x86_64.rpm
    
    Red Hat Desktop version 3:
    
    SRPMS:
    ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/rsh-0.17-17.6.src.rpm
    9db33654428c9f2a68ae4fc3d3538b45  rsh-0.17-17.6.src.rpm
    
    i386:
    d3c9d0998a481654e6aa70bae6d81284  rsh-0.17-17.6.i386.rpm
    458e22f5bbb542402ff7f1d5b31d8efc  rsh-server-0.17-17.6.i386.rpm
    
    x86_64:
    d5a8b840af161bf40970e8d51b5be791  rsh-0.17-17.6.x86_64.rpm
    bc656e79fc3002249f5eb17d4993f67b  rsh-server-0.17-17.6.x86_64.rpm
    
    Red Hat Enterprise Linux ES version 3:
    
    SRPMS:
    ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/rsh-0.17-17.6.src.rpm
    9db33654428c9f2a68ae4fc3d3538b45  rsh-0.17-17.6.src.rpm
    
    i386:
    d3c9d0998a481654e6aa70bae6d81284  rsh-0.17-17.6.i386.rpm
    458e22f5bbb542402ff7f1d5b31d8efc  rsh-server-0.17-17.6.i386.rpm
    
    ia64:
    0ef714b4988d67746492c7fcc94c6505  rsh-0.17-17.6.ia64.rpm
    c5ffc16936049d313396840c1340b190  rsh-server-0.17-17.6.ia64.rpm
    
    x86_64:
    d5a8b840af161bf40970e8d51b5be791  rsh-0.17-17.6.x86_64.rpm
    bc656e79fc3002249f5eb17d4993f67b  rsh-server-0.17-17.6.x86_64.rpm
    
    Red Hat Enterprise Linux WS version 3:
    
    SRPMS:
    ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/rsh-0.17-17.6.src.rpm
    9db33654428c9f2a68ae4fc3d3538b45  rsh-0.17-17.6.src.rpm
    
    i386:
    d3c9d0998a481654e6aa70bae6d81284  rsh-0.17-17.6.i386.rpm
    458e22f5bbb542402ff7f1d5b31d8efc  rsh-server-0.17-17.6.i386.rpm
    
    ia64:
    0ef714b4988d67746492c7fcc94c6505  rsh-0.17-17.6.ia64.rpm
    c5ffc16936049d313396840c1340b190  rsh-server-0.17-17.6.ia64.rpm
    
    x86_64:
    d5a8b840af161bf40970e8d51b5be791  rsh-0.17-17.6.x86_64.rpm
    bc656e79fc3002249f5eb17d4993f67b  rsh-server-0.17-17.6.x86_64.rpm
    
    These packages are GPG signed by Red Hat for security.  Our key and 
    details on how to verify the signature are available from
    https://www.redhat.com/security/team/key/#package
    
    6. References:
    
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0175
    
    7. Contact:
    
    The Red Hat security contact is .  More contact
    details at https://www.redhat.com/security/team/contact/
    
    Copyright 2005 Red Hat, Inc.
    
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