[27583] in bugtraq
GLSA: xfree
daemon@ATHENA.MIT.EDU (Daniel Ahlberg)
Thu Oct 24 14:32:49 2002
From: Daniel Ahlberg <aliz@gentoo.org>
Date: Thu, 24 Oct 2002 11:58:13 +0200
To: bugtraq@securityfocus.com
Message-Id: <20021024095813.BE2E7336BA@mail1.tamperd.net>
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GENTOO LINUX SECURITY ANNOUNCEMENT 200210-006
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PACKAGE : xfree
SUMMARY : Shared memory may be compromised by local XFree86 users
DATE : 2002-10-24 10:00 UTC
EXPLOIT : local
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Roberto Zunino discovered a vulnerability in the MIT-SHM extension of
XFree86 prior to versions 4.2.1. The vulnerability allows a local
user who can run XFree86 to gain read/write access to any shared
memory segment in the system. Although the use of shared memory
segments to store trusted data is not a common practice, by
exploiting this vulnerability the attacker potentially can get and/or
change sensitive information.
SOLUTION
It is recommended that all Gentoo Linux users who are running
x11-base/xfree-4.2.0-r12 and earlier update their systems
as follows:
emerge rsync
emerge xfree
emerge clean
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aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
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