Date: Thu, 21 Jun 2001 11:13:41 -0700 (PDT)
From: TurboLinux Security Team <email@example.com>
Subject: [TL-Security-Announce] TLSA2001029 esound-0.2.22-1
Turbolinux Security Announcement
Vulnerable Packages: All Turbolinux versions previous to 0.2.22-1
Date: 06/21/2001 5:00 PDT
Affected Turbolinux platforms: TL 6.1 Workstation,
All Turbolinux versions
6.0.5 and earlier
Turbolinux Advisory ID#: TLSA2001029
A security hole has been discovered in the package esound. Please update
this package in your installation as soon as possible.
1. Problem Summary
Esound creates a world-writable directory called /tmp/.esd, which
is owned by the user running esound. It stores a socket which is shared
by the programs using esound. When esound is started, the socket becomes
world-writable. During this time, it is possible for an attacker to cre-
ate a symbolic link in /tmp/.esd to a file owned by the esound user and
make that file world-writable.
Any file owned by the esound user can be overwritten.
Update the package from our ftp server by running the following command:
rpm -Uvh ftp_path_to_filename
Where ftp_path_to_filename is the following:
The source RPM can be downloaded here:
**Note: You must rebuild and install the RPM if you choose to download
and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE
THE SECURITY HOLE.
In order to properly rebuild the esound binaries, make sure
you have the package "audiofile-devel" installed on your system.
Please verify the MD5 checksums of the updates before you install:
MD5 sum Package Name
These packages are GPG signed by Turbolinux for security. Our key
is available here:
To verify a package, use the following command:
rpm --checksig name_of_rpm
To examine only the md5sum, use the following command:
**Note: Checking GPG keys requires RPM 3.0 or higher.
You can find more updates on our ftp server:
for TL6.x Workstation and Server security updates
Our webpage for security announcements:
If you want to report vulnerabilities, please contact:
Subscribe to the Turbolinux Security Mailing lists:
TL-security - A moderated list for discussing security issues
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security
TL-security-announce - An announce-only mailing list for security
updates and alerts.