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             AUSCERT External Security Bulletin Redistribution

                     ESB-2004.0035 -- RHSA-2004:003-01
               Updated CVS packages fix minor security issue
                              14 January 2004

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                cvs
Publisher:              Red Hat
Operating System:       Red Hat Linux 9
                        Linux
Impact:                 Create Arbitrary Files
Access Required:        Remote
CVE Names:              CAN-2003-0977

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                   Red Hat Security Advisory

Synopsis:          Updated CVS packages fix minor security issue
Advisory ID:       RHSA-2004:003-01
Issue date:        2004-01-05
Updated on:        2004-01-09
Product:           Red Hat Linux
Keywords:          
Cross references:  
Obsoletes:         
CVE Names:         CAN-2003-0977
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1. Topic:

Updated cvs packages closing a vulnerability that could allow cvs to
attempt to create files and directories in the root file system 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.  

A flaw was found in versions of CVS prior to 1.11.10 where a malformed
module request could cause the CVS server to attempt to create files or
directories at the root level of the file system.  However, normal file
system permissions would prevent the creation of these misplaced
directories.  The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2003-0977 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-1.11.2-13.src.rpm

i386:
ftp://updates.redhat.com/9/en/os/i386/cvs-1.11.2-13.i386.rpm



6. Verification:

MD5 sum                          Package Name
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d6a3c1f6e8403e5d069ab124b3b8ab86 9/en/os/SRPMS/cvs-1.11.2-13.src.rpm
e6919ce0f562781a3926107d932becee 9/en/os/i386/cvs-1.11.2-13.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://ccvs.cvshome.org/servlets/NewsItemView?newsID=84
http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0081.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0977

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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