[16838] in bugtraq
[TL-Security-Announce] xchat TLSA2000022-1
daemon@ATHENA.MIT.EDU (Kevin Beyer)
Wed Sep 20 01:37:29 2000
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-md5;
protocol="application/pgp-signature"; boundary="h31gzZEtNLTqOjlF"
Content-Disposition: inline
Errors-To: tl-security-announce-admin@www1.turbolinux.com
Message-Id: <20000919135444.A5630@turbolinux.com>
Date: Tue, 19 Sep 2000 13:54:44 -0700
Reply-To: tl-security-announce@www1.turbolinux.com
From: Kevin Beyer <kbeyer@TURBOLINUX.COM>
X-To: TL-Security-Announce@turbolinux.com
To: BUGTRAQ@SECURITYFOCUS.COM
--h31gzZEtNLTqOjlF
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
___________________________________________________________________________
TurboLinux Security Announcement
Package: xchat-1.4.2 and earlier
Date: Monday September 18 19:20 PDT 2000
Affected TurboLinux versions: 6.0.5 and earlier
TurboLinux Advisory ID#: TLSA2000022-1
BugTraq ID#: 1601
___________________________________________________________________________
A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible.
___________________________________________________________________________
1. Problem Summary
There has been a well-known vulnerability existing with all un-patched=
=20
xchat versions 1.4.2 and earlier. By supplying commands enclosed in=20
backticks (``) in URL's sent to X-Chat, it is possible to execute=20
arbitrary commands should the X-Chat user decide to view the link by=20
clicking on it. This is due to the manner in which X-Chat launches=20
pages for viewing.
2. Impact
Allows an attacker to exploit shell expansion capabilities to
execute commands as the user running Netscape.=20
3. Thanks
Thanks to Zenith Parsec for reporting the security hole to Bugtraq
and for updates by Zed, forgive me if I got this wrong.
=20
4. Solution
Update the package from our ftp server by running the following command:
rpm -Uvh --nodeps --Force ftp_path_to_filename
Where ftp_path_to_filename is the following:
ftp://ftp.turbolinux.com/pub/updates/6.0/xchat-1.4.3-1.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/xchat-1.4.3-1.src.rpm
**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.
Please verify the MD5 checksums of the updates before you install:
MD5 sum Package Name
---------------------------------------------------------------------------
56d0f9cfa44ea14d7ad5f21b9f419c17 xchat-1.4.3-1.i386.rpm
a6fa049893620723cd48e9925b5a283d xchat-1.4.3-1.src.rpm
___________________________________________________________________________
These packages are GPG signed by Turbolinux for security. Our key
is available here:
http://www.turbolinux.com/security/tlgpgkey.asc
To verify a package, use the following command:
rpm --checksig name_of_rpm
To examine only the md5sum, use the following command:
rpm --checksig --nogpg name_of_rpm=20
**Note: Checking GPG keys requires RPM 3.0 or higher.
___________________________________________________________________________
You can find more updates on our ftp server:
ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
and Server security updates
ftp://ftp.turbolinux.com/pub/updates/4.0/security/ for TL4.0 Workstation
and Server security updates
Our webpage for security announcements:
http://www.turbolinux.com/security
If you want to report vulnerabilities, please contact:
rt-security@turbolinux.com
___________________________________________________________________________
Subscribe to the TurboLinux Security Mailing lists:
TL-security - A moderated list for discussing security issues in TurboLin=
ux
products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security
TL-security-announce - An announce-only mailing list for security updates
and alerts.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security-annou=
nce
--h31gzZEtNLTqOjlF
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.2 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iD4DBQE5x9KU7eR7bnHQKeQRAvKXAJjyri/UckA9tqVvH7JANH9HNIL4AKCfMuzT
d+Xy097Qz5ru/nLRjMXxNA==
=/rN+
-----END PGP SIGNATURE-----
--h31gzZEtNLTqOjlF--
_______________________________________________
TL-Security-Announce mailing list
TL-Security-Announce@www.turbolinux.com
http://www.turbolinux.com/mailman/listinfo/tl-security-announce
