Users login

Create an account »


Users login

Home » Hacking News » EnGarde ESA-20030320-010: vulnerabilities in OpenSSL toolkit

EnGarde ESA-20030320-010: vulnerabilities in OpenSSL toolkit

by Nikola Strahija on March 22nd, 2003 Several vulnerabilities have been found in the OpenSSL toolkit. Users are strongly advised to use a special solution in this advisory.

Hash: SHA1

| EnGarde Secure Linux Security Advisory March 20, 2003 |
| ESA-20030320-010 |
| |
| Package: openssl |
| Summary: Several vulnerabilities in the OpenSSL toolkit. |

EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, e-commerce, and integrated open source
security tools.

- --------
Recently several vulnerabilities have been found in the OpenSSL

The Common Vulnerabilities and Exposures project ( has
assigned the names CAN-2003-0131 and CAN-2003-0147 to these issues.

Vlastimil Klima, Ondrej Pokorny, and Tomas Rosa have come up with an
extension of the "Bleichenbacher attack" on RSA with PKCS #1 v1.5
padding as used in SSL 3.0 and TLS 1.0 [1].

OpenSSL has been found to be vulnerable to this type of attack.

Recently David Brumley and Dan Boneh of Stanford University discovered
and documented [2] a timing attack against RSA private keys, to be
presented at the UNIX Security Symposium.

OpenSSL has been found to be vulnerable to this type of attack if RSA
blinding [3] is not enabled (which it is not by default). To defend
against this vulnerability, this update enables RSA blinding by default.

All users are recommended to upgrade immediately using the special
SOLUTION in this advisory.


- --------
Users of the EnGarde Professional edition can use the Guardian Digital
Secure Network to update their systems automatically.

EnGarde Community users should upgrade to the most recent version
as outlined in this advisory. Updates may be obtained from:

Before upgrading the package, the machine must either:

a) be booted into a "standard" kernel; or
b) have LIDS disabled.

To disable LIDS, execute the command:

# /sbin/lidsadm -S -- -LIDS_GLOBAL

To install the updated package, execute the command:

# rpm -Uvh files

You must now update the LIDS configuration by executing the command:

# /usr/sbin/

To re-enable LIDS (if it was disabled), execute the command:

# /sbin/lidsadm -S -- +LIDS_GLOBAL

To verify the signatures of the updated packages, execute the command:

# rpm -Kv files

Once the updated packages are installed, you must restart all the
daemons which use the OpenSSL libraries. You may either reboot the
system or restart the following daemons:

httpd -- Apache web server (with mod_ssl)
snortd -- Snort intrusion detection system
sshd -- Secure shell daemon
stunnel-imap -- SSL-enabled IMAP daemon
stunnel-pop3 -- SSL-enabled POP3 daemon

- ----------------
These updated packages are for EnGarde Secure Linux Community

Source Packages:

MD5 Sum: 950c1b57ac45404a4cbfc92143fbef8f

Binary Packages:

MD5 Sum: cf76fc7d51366228d86b6ccc646ea234

MD5 Sum: e5eeee84ba5db7e3e320eebd66851ee2

MD5 Sum: cdf88671bfacf2157fe999fff844d9c2

MD5 Sum: d0ad30b1522741299e6d689fd02df774

- ----------
Guardian Digital's public key:

OpenSSL's Official Web Site:

Security Contact: [email protected]
EnGarde Advisories:

- --------------------------------------------------------------------------
$Id: ESA-20030320-010-openssl,v 1.2 2003/03/20 13:36:57 rwm Exp $
- --------------------------------------------------------------------------
Author: Ryan W. Maple
Copyright 2003, Guardian Digital, Inc.

Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see

To unsubscribe email [email protected]
with "unsubscribe" in the subject of the message.

Copyright(c) 2002 Guardian Digital, Inc.

Newsletter signup

Signup to our monthly newsletter and stay in touch with IT news!

Free E-books

We've got ebooks! But they're not online. :( Please give us a few days to bring downloads back.


Have something to say or just wanna drop us a line? Please keep this in mind: to spam, we reply with spam.

Contact us »