Security Update: [CSSA-2002-022.0] Linux: OpenSSH ticket and token passing buffer overflow
Date: Wed, 15 May 2002 16:53:33 -0700
From: [email protected]
To: [email protected], [email protected],
Subject: Security Update: [CSSA-2002-022.0] Linux: OpenSSH ticket and token passing buffer overflow
--B4IIlcmfBL/1gGOG
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
To: [email protected] [email protected] [email protected]
______________________________________________________________________________
Caldera International, Inc. Security Advisory
Subject: Linux: OpenSSH ticket and token passing buffer overflow
Advisory number: CSSA-2002-022.0
Issue date: 2002 May 15
Cross reference:
______________________________________________________________________________
1. Problem Description
A buffer overflow exists in OpenSSH if KerberosTgtPassing or
AFSTokenPassing has been enabled in the sshd_config file. A
malicious user, possibly remote, could use this vulnerability
to gain privileged access to the system.
2. Vulnerable Supported Versions
System Package
----------------------------------------------------------------------
OpenLinux 3.1.1 Server prior to openssh-2.9p2-6.i386.rpm
prior to openssh-askpass-2.9p2-6.i386.rpm
prior to openssh-server-2.9p2-6.i386.rpm
OpenLinux 3.1.1 Workstation prior to openssh-2.9p2-6.i386.rpm
prior to openssh-askpass-2.9p2-6.i386.rpm
OpenLinux 3.1 Server prior to openssh-2.9p2-6.i386.rpm
prior to openssh-askpass-2.9p2-6.i386.rpm
prior to openssh-server-2.9p2-6.i386.rpm
OpenLinux 3.1 Workstation prior to openssh-2.9p2-6.i386.rpm
prior to openssh-askpass-2.9p2-6.i386.rpm
3. Solution
The proper solution is to install the latest packages.
4. OpenLinux 3.1.1 Server
4.1 Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/RPMS
4.2 Packages
f9a494af5e0e6a8eec419f8f94087f7e openssh-2.9p2-6.i386.rpm
b9fcc6352bc4c65f63cda1b0caa2b89c openssh-askpass-2.9p2-6.i386.rpm
ff4a5bc7e7b1d4fd3f79c647d11d9162 openssh-server-2.9p2-6.i386.rpm
4.3 Installation
rpm -Fvh openssh-2.9p2-6.i386.rpm
rpm -Fvh openssh-askpass-2.9p2-6.i386.rpm
rpm -Fvh openssh-server-2.9p2-6.i386.rpm
4.4 Source Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/SRPMS
4.5 Source Packages
ab3e90f4e70fc3eecd7e456fa2c2a97e openssh-2.9p2-6.src.rpm
5. OpenLinux 3.1.1 Workstation
5.1 Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/RPMS
5.2 Packages
3406e8a3e55b52b2eb3e7644327d783c openssh-2.9p2-6.i386.rpm
e57817246b56ffdf0322be8afcec08ae openssh-askpass-2.9p2-6.i386.rpm
5.3 Installation
rpm -Fvh openssh-2.9p2-6.i386.rpm
rpm -Fvh openssh-askpass-2.9p2-6.i386.rpm
5.4 Source Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/SRPMS
5.5 Source Packages
fde335f6bce93b3a3bf3cc20d8231849 openssh-2.9p2-6.src.rpm
6. OpenLinux 3.1 Server
6.1 Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/RPMS
6.2 Packages
41f489ad60ed068a2a027589ca49e6ea openssh-2.9p2-6.i386.rpm
c4b8c1e011708a9e8fa04d927387bde5 openssh-askpass-2.9p2-6.i386.rpm
3bbb580c64ba83efaeefac20d891148f openssh-server-2.9p2-6.i386.rpm
6.3 Installation
rpm -Fvh openssh-2.9p2-6.i386.rpm
rpm -Fvh openssh-askpass-2.9p2-6.i386.rpm
rpm -Fvh openssh-server-2.9p2-6.i386.rpm
6.4 Source Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/SRPMS
6.5 Source Packages
1c30685cf106f5ee05ec201cd55044f8 openssh-2.9p2-6.src.rpm
7. OpenLinux 3.1 Workstation
7.1 Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/RPMS
7.2 Packages
45502ddfa3d9bc67eefc2ec6a6bd992a openssh-2.9p2-6.i386.rpm
c5bedc4946ee432f66255161ba61bbf5 openssh-askpass-2.9p2-6.i386.rpm
7.3 Installation
rpm -Fvh openssh-2.9p2-6.i386.rpm
rpm -Fvh openssh-askpass-2.9p2-6.i386.rpm
7.4 Source Package Location
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/SRPMS
7.5 Source Packages
5ddea2209f395da08ca715a128e5485a openssh-2.9p2-6.src.rpm
8. References
Specific references for this advisory:
none
Caldera OpenLinux security resources:
http://www.caldera.com/support/security/index.html
Caldera UNIX security resources:
http://stage.caldera.com/support/security/
This security fix closes Caldera incidents sr863642, fz520794
and erg712034.
9. Disclaimer
Caldera International, Inc. is not responsible for the misuse
of any of the information we provide on this website and/or
through our security advisories. Our advisories are a service
to our customers intended to promote secure installation and
use of Caldera products.
10. Acknowledgements
Marcell Fodor discovered and researched this vulnerability.
______________________________________________________________________________
--B4IIlcmfBL/1gGOG
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (SCO_SV)
Comment: For info see http://www.gnupg.org
iEYEARECAAYFAjzi9P0ACgkQbluZssSXDTEYsgCgsvb+FFblriS7Cx3CHpttoMIv
Fs8AnAu9ImhtbFsJZd8aT1CMaLJSU8Se
=44Zg
-----END PGP SIGNATURE-----
--B4IIlcmfBL/1gGOG--
