[Full-Disclosure] [RHSA-2004:154-01] Updated CVS packages fix security issue

bugzilla_at_redhat.com
Date: 04/14/04

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    To: redhat-watch-list@redhat.com, bugtraq@securityfocus.com, full-disclosure@lists.netsys.com
    Date: Wed, 14 Apr 2004 10:14 -0400
    
    

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                       Red Hat Security Advisory

    Synopsis: Updated CVS packages fix security issue
    Advisory ID: RHSA-2004:154-01
    Issue date: 2004-04-14
    Updated on: 2004-04-14
    Product: Red Hat Linux
    Keywords:
    Cross references:
    Obsoletes: RHSA-2004:003
    CVE Names: CAN-2004-0180
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    1. Topic:

    Updated cvs packages that fix a client vulnerability that could be
    exploited by a malicious server are now available.

    2. Relevant releases/architectures:

    Red Hat Linux 9 - i386

    3. Problem description:

    CVS is a version control system frequently used to manage source code
    repositories.

    Sebastian Krahmer discovered a flaw in CVS clients where rcs diff files can
    create files with absolute pathnames. An attacker could create a fake
    malicious CVS server that would cause arbitrary files to be created or
    overwritten when a victim connects to it. The Common Vulnerabilities and
    Exposures project (cve.mitre.org) has assigned the name CAN-2004-0180 to
    this issue.

    Users of CVS are advised to upgrade to these erratum packages, which
    contain a patch correcting 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:

    up2date

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

    5. RPMs required:

    Red Hat Linux 9:

    SRPMS:
    ftp://updates.redhat.com/9/en/os/SRPMS/cvs-1.11.2-17.src.rpm

    i386:
    ftp://updates.redhat.com/9/en/os/i386/cvs-1.11.2-17.i386.rpm

    6. Verification:

    MD5 sum Package Name
    - --------------------------------------------------------------------------

    44ad2349b6b00275273280eac1a52e20 9/en/os/SRPMS/cvs-1.11.2-17.src.rpm
    586d676137b75f940baa90ee28fd33ce 9/en/os/i386/cvs-1.11.2-17.i386.rpm

    These packages are GPG signed by Red Hat for security. Our key is
    available from https://www.redhat.com/security/team/key.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://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0180

    8. Contact:

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

    Copyright 2004 Red Hat, Inc.
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