FLSA-2005:2058: Updated cdrtools packages fix a security issue
Posted on: 02/20/2005 07:02 PM

Updated cdrtools packages are available for Red Hat Linux 9

Fedora Legacy Update Advisory

Synopsis: Updated cdrtools packages fix a security issue
Advisory ID: FLSA:2058
Issue date: 2005-02-20
Product: Red Hat Linux
Keywords: Bugfix
Cross references: https://bugzilla.fedora.us/show_bug.cgi?id
CVE Names: CAN-2004-0806

1. Topic:

Updated cdrtools packages that fix a privilege escalation vulnerability are now available.

Cdrtools is a collection of CD/DVD utilities.

2. Relevant releases/architectures:

Red Hat Linux 9 - i386

3. Problem description:

Max Vozeler found that the cdrecord program, when is set suid root, fails to drop privileges when it executes a program specified by the user through the $RSH environment variable. This can be abused by a local attacker to obtain root privileges. In the default configuration of Red Hat Linux 9, the cdrecord program is not set suid root and this attack is not possible. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0806 to this issue.

Users of cdrtools are advised to upgrade to these errata 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 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/docs for directions on how to configure yum and apt-get.

5. Bug IDs fixed:

http://bugzilla.fedora.us - bug #2058 - cdrecord suid privilege escalation

6. RPMs required:

Red Hat Linux 9:



7. Verification:

SHA1 sum Package Name


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 filename

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 filename

8. References:


9. Contact:

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

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