Date: Wed, 2 May 2001 09:38:12 -0400
From: EnGarde Secure Linux <[email protected]>
To: [email protected]Subject: [ESA-20010426-01] openssl vulnerabilities
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| EnGarde Secure Linux Security Advisory May 02, 2001 |
| http://www.engardelinux.org/ ESA-20010426-01 |
| |
| Package: openssl |
| Summary: There are four potential vulnerabilities in openssl. |
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EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, complete e-commerce using AllCommerce,
and integrated open source security tools.
OVERVIEW
- --------
There are four potential vulnerabilities in the version of openssl which
shipped with EnGarde Secure Linux version 1.0.1.
DETAIL
- ------
There were four security fixes introduced into openssl 0.9.6a. However,
this release also broke binary compatibility with older versions of
openssl. Thanks to Nalin Dahyabhai, these changes have been backported
into openssl 0.9.6. This alleviates having to release updated packages
for all of the programs that depend on openssl, such as openssh.
The security-related changes are (from the 0.9.6a announcement):
o Security fix: change behavior of OpenSSL to avoid using environment
variables when running as root.
o Security fix: check the result of RSA-CRT to reduce the possibility
of deducing the private key from an incorrectly calculated
signature.
o Security fix: prevent Bleichenbacher's DSA attack.
o Security fix: Zero the premaster secret after deriving the master
secret in DH ciphersuites.
SOLUTION
- --------
All users running 'openssl' should upgrade to the most recent version,
as outlined in this advisory. All updates can be found at:
ftp://ftp.engardelinux.org/pub/engarde/stable/updates/http://ftp.engardelinux.org/pub/engarde/stable/updates/
To install the updated package, execute the command:
rpm -Uvh <filename>
To verify the signature of the updated packages, execute the command:
rpm -Kv <filename>
UPDATED PACKAGES
- ----------------
Source Packages:
SRPMS/openssl-0.9.6-1.0.13.src.rpm
MD5 Sum: 6e8134b6635a77bc6a9101438b50427a
i386 Binary Packages:
i386/openssl-0.9.6-1.0.13.i386.rpm
MD5 Sum: 2a0f944722c27fd34d8549dae25b611d
i386/openssl-misc-0.9.6-1.0.13.i386.rpm
MD5 Sum: 59cb6c0fed182b2b5eb3789b2fffdae7
i686 Binary Packages:
i686/openssl-0.9.6-1.0.13.i686.rpm
MD5 Sum: 7bdedd1a057f547cc59a56b35801c277
i686/openssl-misc-0.9.6-1.0.13.i686.rpm
MD5 Sum: 82aa05b124b35809f27d48f81418e3e0
REFERENCES
- ----------
Guardian Digital's public key:
http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY
OpenSSL's official web site:
http://www.openssl.org/
OpenSSL 0.9.6a announcement:
http://marc.theaimsgroup.com/?l=openssl-announce&m=98655255404174&w=2
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$Id: 2001.04.26-openssl,v 1.1 2001/04/26 15:18:29 rwm Exp $
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Author: Ryan W. Maple, <[email protected]>
Copyright 2001, Guardian Digital, Inc.
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