RHSA-2004:119-01: Updated OpenSSL packages fix vulnerabilities
Posted on: 03/17/2004 08:24 AM

Updated OpenSSL packages for Red Hat Enterprise Linux 2.1 are available:

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Red Hat Security Advisory

Synopsis: Updated OpenSSL packages fix vulnerabilities
Advisory ID: RHSA-2004:119-01
Issue date: 2004-03-17
Updated on: 2004-03-17
Product: Red Hat Enterprise Linux
Keywords: DoS
Cross references:
Obsoletes: RHSA-2003:293
CVE Names: CAN-2004-0081 CAN-2003-0851
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1. Topic:

Updated OpenSSL packages that fix a remote denial of service vulnerability are now available for Red Hat Enterprise Linux 2.1.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, i686, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386, i686
Red Hat Enterprise Linux WS version 2.1 - i386, i686

3. Problem description:

OpenSSL is a toolkit that implements Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.

Testing performed by the OpenSSL group using the Codenomicon TLS Test Tool uncovered a bug in older versions of OpenSSL 0.9.6 prior to 0.9.6d that can lead to a denial of service attack (infinite loop). The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0081 to this issue.

Testing performed by Novell using a test suite provided by NISCC uncovered an issue in the ASN.1 parser in versions of OpenSSL 0.9.6 prior to 0.9.6l which could cause large recursion and possibly lead to a denial of service attack if used where stack space is limited. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0851 to this issue.

These updated packages contain patches provided by the OpenSSL group that protect against these issues.

NOTE: Because server applications are affected by this issue, users are advised to either restart all services using OpenSSL functionality or restart their system after installing these updated packages.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs.

Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website:

https://rhn.redhat.com/help/latest-up2date.pxt

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

117771 - CAN-2004-0081 OpenSSL flaw

6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/openssl095a-0.9.5a-24.src.rpm
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/openssl096-0.9.6-25.7.src.rpm

i386:
Available from Red Hat Network: openssl-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-devel-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-perl-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl095a-0.9.5a-24.i386.rpm
Available from Red Hat Network: openssl096-0.9.6-25.7.i386.rpm

i686:
Available from Red Hat Network: openssl-0.9.6b-36.i686.rpm

ia64:
Available from Red Hat Network: openssl-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl-devel-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl-perl-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl095a-0.9.5a-24.ia64.rpm
Available from Red Hat Network: openssl096-0.9.6-25.7.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/openssl095a-0.9.5a-24.src.rpm
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/openssl096-0.9.6-25.7.src.rpm

ia64:
Available from Red Hat Network: openssl-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl-devel-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl-perl-0.9.6b-36.ia64.rpm
Available from Red Hat Network: openssl095a-0.9.5a-24.ia64.rpm
Available from Red Hat Network: openssl096-0.9.6-25.7.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/openssl-0.9.6b-36.src.rpm

i386:
Available from Red Hat Network: openssl-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-devel-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-perl-0.9.6b-36.i386.rpm

i686:
Available from Red Hat Network: openssl-0.9.6b-36.i686.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/openssl-0.9.6b-36.src.rpm

i386:
Available from Red Hat Network: openssl-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-devel-0.9.6b-36.i386.rpm
Available from Red Hat Network: openssl-perl-0.9.6b-36.i386.rpm

i686:
Available from Red Hat Network: openssl-0.9.6b-36.i686.rpm

7. Verificationx:

MD5 sum Package Name
---------------------------------------------------------------------------

8f3d7ca8ef6a47d00259a519c239e5d3 2.1AS/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
e3842e7dab9f5cb4efa251dd16205135 2.1AS/en/os/SRPMS/openssl095a-0.9.5a-24.src.rpm
36c81d8e1e6a26b922ef0c73ce3eb539 2.1AS/en/os/SRPMS/openssl096-0.9.6-25.7.src.rpm
439f47a177c1b01d3878b97625460ea9 2.1AS/en/os/i386/openssl-0.9.6b-36.i386.rpm
54b446957432342efa342dd05337f948 2.1AS/en/os/i386/openssl-devel-0.9.6b-36.i386.rpm
db43fc0a9401abfc062082fa4e608846 2.1AS/en/os/i386/openssl-perl-0.9.6b-36.i386.rpm
f47e4ea5755b24338b70cec6ce8f8733 2.1AS/en/os/i386/openssl095a-0.9.5a-24.i386.rpm
f44addfbcb59aad27e712dbef8e4034d 2.1AS/en/os/i386/openssl096-0.9.6-25.7.i386.rpm
ef981571de5836325a38e14bfb3201d0 2.1AS/en/os/i686/openssl-0.9.6b-36.i686.rpm
571963bdfc587a2f1466d2b8cb398281 2.1AS/en/os/ia64/openssl-0.9.6b-36.ia64.rpm
1925243ab935d22540fc178e36617f74 2.1AS/en/os/ia64/openssl-devel-0.9.6b-36.ia64.rpm
627fc8b39db3c9980243a407f8eebee9 2.1AS/en/os/ia64/openssl-perl-0.9.6b-36.ia64.rpm
eabcdec0a8336fb9131d835a27e9f869 2.1AS/en/os/ia64/openssl095a-0.9.5a-24.ia64.rpm
c2949d24e2bbd0135971bde45e19ca85 2.1AS/en/os/ia64/openssl096-0.9.6-25.7.ia64.rpm
8f3d7ca8ef6a47d00259a519c239e5d3 2.1AW/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
e3842e7dab9f5cb4efa251dd16205135 2.1AW/en/os/SRPMS/openssl095a-0.9.5a-24.src.rpm
36c81d8e1e6a26b922ef0c73ce3eb539 2.1AW/en/os/SRPMS/openssl096-0.9.6-25.7.src.rpm
571963bdfc587a2f1466d2b8cb398281 2.1AW/en/os/ia64/openssl-0.9.6b-36.ia64.rpm
1925243ab935d22540fc178e36617f74 2.1AW/en/os/ia64/openssl-devel-0.9.6b-36.ia64.rpm
627fc8b39db3c9980243a407f8eebee9 2.1AW/en/os/ia64/openssl-perl-0.9.6b-36.ia64.rpm
eabcdec0a8336fb9131d835a27e9f869 2.1AW/en/os/ia64/openssl095a-0.9.5a-24.ia64.rpm
c2949d24e2bbd0135971bde45e19ca85 2.1AW/en/os/ia64/openssl096-0.9.6-25.7.ia64.rpm
8f3d7ca8ef6a47d00259a519c239e5d3 2.1ES/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
439f47a177c1b01d3878b97625460ea9 2.1ES/en/os/i386/openssl-0.9.6b-36.i386.rpm
54b446957432342efa342dd05337f948 2.1ES/en/os/i386/openssl-devel-0.9.6b-36.i386.rpm
db43fc0a9401abfc062082fa4e608846 2.1ES/en/os/i386/openssl-perl-0.9.6b-36.i386.rpm
ef981571de5836325a38e14bfb3201d0 2.1ES/en/os/i686/openssl-0.9.6b-36.i686.rpm
8f3d7ca8ef6a47d00259a519c239e5d3 2.1WS/en/os/SRPMS/openssl-0.9.6b-36.src.rpm
439f47a177c1b01d3878b97625460ea9 2.1WS/en/os/i386/openssl-0.9.6b-36.i386.rpm
54b446957432342efa342dd05337f948 2.1WS/en/os/i386/openssl-devel-0.9.6b-36.i386.rpm
db43fc0a9401abfc062082fa4e608846 2.1WS/en/os/i386/openssl-perl-0.9.6b-36.i386.rpm
ef981571de5836325a38e14bfb3201d0 2.1WS/en/os/i686/openssl-0.9.6b-36.i686.rpm

These packages are GPG signed by Red Hat for security. Our key is available from https://www.redhat.com/security/keys.html

You can verify each package with the following command:

rpm --checksig -v <filename>

If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command:

md5sum <filename>


8. References:

http://www.codenomicon.com/testtools/tls/
http://www.niscc.gov.uk/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0081
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0851

9. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.


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