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Helix Code Security Advisory - go-gnome pre-installer

Aug 30, 2000, 20:10 (0 Talkback[s])

Date: Tue, 29 Aug 2000 18:08:50 -0400
From: "Helix Code, Inc." security@helixcode.com
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: Helix Code Security Advisory - go-gnome pre-installer

HELIX CODE, INC.                                             SECURITY ADVISORY
security@helixcode.com                                 Issue Date: 29 Aug 2000
PACKAGES AFFECTED:
"go-gnome" Helix GNOME pre-installer

SYNOPSIS:
A vulnerability in the go-gnome pre-installer allows non-root users to exploit world-writable permissions in /tmp, permitting files normally only accessible by root to be overwritten.

DESCRIPTION:
The go-gnome pre-installer uses a few rather predictable filenames in /tmp for uudecode, snarf, and the installer files. If one (or more) of those files already exist with a symbolic link created by a malicious user, the files pointed to by those links will be clobbered.

SOLUTION:
The go-gnome pre-installer has been updated on the main Helix Code mirror and go-gnome.com. This new version fixes this vulnerability by storing files in /var/cache/helix-install, which is writable only by root.

AVAILABILITY:
A new version of the go-gnome pre-installer is available immediately from Helix Code, Inc. at go-gnome.com:
http://go-gnome.com

VERIFICATION:
94e5849dd659642bc58d768d12c3c26d go-gnome

Copyright (c) 2000 Helix Code, Inc.