Fedora Legacy alert: Updated elm resolves security vulnerability

Posted by dave on Jan 22, 2004 9:34 PM EDT
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Updated elm packages are now available that fix a security vulnerability which may allow remote attackers to execute arbitrary code via a long Subject line.

Hash: SHA1

- ----------------------------------------------------------------------- Fedora Legacy Update Advisory

Synopsis: Updated elm resolves security vulnerability Advisory ID: FLSA:1230 Issue date: 2004-01-22 Product: Red Hat Linux Keywords: Security Cross references: https://bugzilla.fedora.us/show_bug.cgi?id=1230 CVE Names: CAN-2003-0966 - -----------------------------------------------------------------------

1. Topic:

Updated elm packages are now available that fix a security vulnerability which may allow remote attackers to execute arbitrary code via a long Subject line.

2. Relevant releases/architectures:

Red Hat Linux 7.2 - i386 Red Hat Linux 7.3 - i386

3. Problem description:

Elm is a terminal mode email user agent. The frm command is provided as part of the Elm packages and gives a summary list of the sender and subject of selected messages in a mailbox or folder.

A buffer overflow vulnerability was found in the frm command. An attacker could create a message with an overly long Subject line such that when the frm command is run by a victim arbitrary code is executed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0966 to this issue.

Users of the frm command should update to these erratum packages, which contain a backported security patch that corrects this issue.

Fedora Legacy would like to thank Paul Rubin for discovering and disclosing this issue, and Jonny Strom for providing a backported fix for Red Hat Linux 7.2 and 7.3.

All users are advised to upgrade to these errata packages, which contain a backported security patch that corrects 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 yum and apt. Many people find this an easier way to apply updates. To use yum issue:

yum update

or to use apt:

apt-get update; apt-get upgrade

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www.fedoralegacy.org/download for directions on how to configure yum and apt-get.

5. Bug IDs fixed:

http://bugzilla.fedora.us - 1230 - elm security fix in rh7x http://bugzilla.redhat.com - 112078 - CAN-2003-0966 buffer overflow in frm command

6. RPMs required:

Red Hat Linux 7.2:

SRPMS: http://download.fedoralegacy.org/redhat/7.2/updates/SRPMS/elm-2.5.6-3.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/7.2/updates/i386/elm-2.5.6-3.legacy.i386.rpm

Red Hat Linux 7.3:

SRPMS: http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/elm-2.5.6-4.legacy.src.rpm i386: http://download.fedoralegacy.org/redhat/7.3/updates/i386/elm-2.5.6-4.legacy.i386.rpm

7. Verification:

SHA1 sum Package Name - --------------------------------------------------------------------------- 638ec1d1bee210ac094a9264a09c4aba24708620 7.2/updates/SRPMS/elm-2.5.6-3.legacy.src.rpm 58e7d0bbb603585ea19fd7a25abe2375e3e1d991 7.2/updates/i386/elm-2.5.6-3.legacy.i386.rpm 29d060d14c7fda79e26db4a8b5022e4f74efb826 7.3/updates/SRPMS/elm-2.5.6-4.legacy.src.rpm 1146719b902bee3221cc8fdd571675497cd602bd 7.3/updates/i386/elm-2.5.6-4.legacy.i386.rpm

These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy.org/about/security.php

You can verify each package with the following command: rpm --checksig -v

If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command: sha1sum

8. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0966 http://rhn.redhat.com/errata/RHSA-2004-009.html https://bugzilla.fedora.us/show_bug.cgi?id=1230

9. Contact:

The Fedora Legacy security contact is . More project details at https://www.fedoralegacy.org

- -- Jesse Keating RHCE (http://geek.j2solutions.net) Fedora Legacy Team (http://www.fedora.us/wiki/FedoraLegacy) GPG Public Key (http://geek.j2solutions.net/jkeating.j2solutions.pub) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux)


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