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[RHSA-2003:231-01] Updated semi packages fix vulnerability



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                   Red Hat Security Advisory

Synopsis:          Updated semi packages fix vulnerability
Advisory ID:       RHSA-2003:231-01
Issue date:        2003-10-02
Updated on:        2003-10-02
Product:           Red Hat Enterprise Linux
Keywords:          
Cross references:  
Obsoletes:         
CVE Names:         CAN-2003-0440
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1. Topic:

Updated semi packages that fix vulnerabilities in semi's temporary file
handling are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - noarch
Red Hat Linux Advanced Workstation 2.1 - noarch
Red Hat Enterprise Linux ES version 2.1 - noarch
Red Hat Enterprise Linux WS version 2.1 - noarch

3. Problem description:

semi is a MIME library for GNU Emacs and XEmacs used by the wl mail package.

A vulnerability in semi version 1.14.3 and earlier allows an attacker
to overwrite arbitrary files with potentially arbitrary contents using the
privileges of the user running Emacs and semi. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0440
to this issue.

Users of semi are advised to upgrade to these packages, which contain
a backported 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.

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

98817 - CAN-2003-0440 semi has tmp file vulnerability

6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm

noarch:
Available from Red Hat Network: semi-1.14.3-8.72.EL.noarch.rpm
Available from Red Hat Network: semi-xemacs-1.14.3-8.72.EL.noarch.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm

noarch:
Available from Red Hat Network: semi-1.14.3-8.72.EL.noarch.rpm
Available from Red Hat Network: semi-xemacs-1.14.3-8.72.EL.noarch.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm

noarch:
Available from Red Hat Network: semi-1.14.3-8.72.EL.noarch.rpm
Available from Red Hat Network: semi-xemacs-1.14.3-8.72.EL.noarch.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm

noarch:
Available from Red Hat Network: semi-1.14.3-8.72.EL.noarch.rpm
Available from Red Hat Network: semi-xemacs-1.14.3-8.72.EL.noarch.rpm



7. Verification:

MD5 sum                          Package Name
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4b2b6e095cf5b0d18ba3707ee95ec8ba 2.1AS/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm
d04a6ad4d268b3fe373a819d14b8dfb0 2.1AS/en/os/noarch/semi-1.14.3-8.72.EL.noarch.rpm
a1fe87da14ace74337d57a7d4594237b 2.1AS/en/os/noarch/semi-xemacs-1.14.3-8.72.EL.noarch.rpm
4b2b6e095cf5b0d18ba3707ee95ec8ba 2.1AW/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm
d04a6ad4d268b3fe373a819d14b8dfb0 2.1AW/en/os/noarch/semi-1.14.3-8.72.EL.noarch.rpm
a1fe87da14ace74337d57a7d4594237b 2.1AW/en/os/noarch/semi-xemacs-1.14.3-8.72.EL.noarch.rpm
4b2b6e095cf5b0d18ba3707ee95ec8ba 2.1ES/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm
d04a6ad4d268b3fe373a819d14b8dfb0 2.1ES/en/os/noarch/semi-1.14.3-8.72.EL.noarch.rpm
a1fe87da14ace74337d57a7d4594237b 2.1ES/en/os/noarch/semi-xemacs-1.14.3-8.72.EL.noarch.rpm
4b2b6e095cf5b0d18ba3707ee95ec8ba 2.1WS/en/os/SRPMS/semi-1.14.3-8.72.EL.src.rpm
d04a6ad4d268b3fe373a819d14b8dfb0 2.1WS/en/os/noarch/semi-1.14.3-8.72.EL.noarch.rpm
a1fe87da14ace74337d57a7d4594237b 2.1WS/en/os/noarch/semi-xemacs-1.14.3-8.72.EL.noarch.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>


8. References:

http://www.debian.org/security/2003/dsa-339
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0440

9. 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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