Fedora Legacy alert: Updated elm resolves security vulnerability
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.
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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
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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
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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
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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)
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