Red Hat Security Advisory: esound contains a race conditionOct 06, 2000, 21:28 (0 Talkback[s])
Date: Fri, 6 Oct 2000 17:13 -0400
Red Hat, Inc. Security Advisory Synopsis: esound contains a race condition Advisory ID: RHSA-2000:077-03 Issue date: 2000-10-06 Updated on: 2000-10-06 Product: Red Hat Linux Keywords: esound security esd socket Gnome Cross references: N/A
Esound, the Gnome sound server, contains a race condition that a malicious user could exploit to change permissions of any file owned by the esound user.
2. Relevant releases/architectures:
Red Hat Linux 6.0 - i386, alpha, sparc
3. Problem description:
Esound, the sound daemon used for Gnome, creates a world-writable directory, /tmp/.esd. This directory is owned by the user running esound, and is used to store a socket which is used by programs connecting to the sound server. During startup, this socket's permissions are adjusted. An attacker on the system can theoretically create a symbolic link, and cause any file or directory owned by the user running esound to be made world writable.
The new packages fixes this race condition.
For each RPM for your particular architecture, run:
rpm -Fvh [filename]
where filename is the name of the RPM.
All active Gnome sessions should also be restarted after the upgrade is applied.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
6. RPMs required:
Red Hat Linux 6.x:
Red Hat Linux 7.0:
MD5 sum Package Name
4f7a81fe6b7f5a419272659b92d1dfc1 6.2/SRPMS/esound-0.2.20-0.src.rpm 648746086daa7bbc6bef00697e62bf51 6.2/alpha/esound-0.2.20-0.alpha.rpm 8a7dbf7dabbd7d9ca2861c1ecf2b2d5f 6.2/alpha/esound-devel-0.2.20-0.alpha.rpm 962fa1129804f2d8470e1767a352f77f 6.2/i386/esound-0.2.20-0.i386.rpm 784ec77026228d31d823e619c1de78d8 6.2/i386/esound-devel-0.2.20-0.i386.rpm 2127fdd7654b80506952dce08c3f5014 6.2/sparc/esound-0.2.20-0.sparc.rpm 0c191eee05a89dc0d12b3ca4981d2353 6.2/sparc/esound-devel-0.2.20-0.sparc.rpm 24f8e1b106500565e8426ad96150a001 7.0/SRPMS/esound-0.2.20-1.src.rpm a61209acb87ed7f4fa5b1d63d161c85d 7.0/i386/esound-0.2.20-1.i386.rpm 6b326c66d570ee59eda7c2daf0ab4721 7.0/i386/esound-devel-0.2.20-1.i386.rpmThese packages are GPG signed by Red Hat, Inc. for security. Our key is available at:
You can verify each package with the following command:
If you only wish to verify that each package has not been
corrupted or tampered with, examine only the md5sum with the
BugTraq ID: 1659 (http://www.securityfocus.com/bid/1659)
Copyright(c) 2000 Red Hat, Inc.