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[security bulletin] HPSBUX03194 rev.1 - HP-UX running sendmail(1M), Remote Disclosure of Information



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Note: the current version of the following document is available here:
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/
docDisplay?docId=emr_na-c04506802

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c04506802
Version: 1

HPSBUX03194 rev.1 - HP-UX running sendmail(1M), Remote Disclosure of
Information

NOTICE: The information in this Security Bulletin should be acted upon as
soon as possible.

Release Date: 2015-04-30
Last Updated: 2015-04-30

Potential Security Impact: Remote disclosure of information

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified with HP-UX running
sendmail(1M) using STARTTLS (TLS).

This is the SSLv3 vulnerability known as "Padding Oracle on Downgraded Legacy
Encryption" also known as "Poodle", which could

be exploited remotely to allow disclosure of information.

SSLv3 may be enabled when STARTTLS is configured .

References:

CVE-2014-3566 (SSRT101834)

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

HP-UX 11i v1 (B.11.11)

HP-UX 11i v2 (B.11.23)

HP-UX 11i v3 (B.11.31)

BACKGROUND

CVSS 2.0 Base Metrics
===========================================================
  Reference              Base Vector             Base Score
CVE-2014-3566    (AV:N/AC:M/Au:N/C:P/I:N/A:N)       4.3
===========================================================
             Information on CVSS is documented
            in HP Customer Notice: HPSN-2008-002

RESOLUTION

HP has provided the following steps to resolve the vulnerability in
sendmail(1M).

Note: The vulnerability is only possible if sendmail is configured to use
STARTTLS. Configurations not using STARTTLS are not

vulnerable so the following steps are not necessary.

Edit the configuration file ./etc/mail/sendmail.cf..
Locate the lines where the STARTTLS options are set.

Add or modify a line containing "D{tls_version}<version>" as follows so that
only TLS version 1 will be used:

D{tls_version}TLSv1

Save the modified file and restart the sendmail service:

# /sbin/init.d/sendmail stop

# /sbin/init.d/sendmail start

HISTORY
Version:1 (rev.1) - 30 April 2015 Initial release

Third Party Security Patches: Third party security patches that are to be
installed on systems running HP software products should be applied in
accordance with the customer's patch management policy.

Support: For issues about implementing the recommendations of this Security
Bulletin, contact normal HP Services support channel.  For other issues about
the content of this Security Bulletin, send e-mail to security-alert@xxxxxx.

Report: To report a potential security vulnerability with any HP supported
product, send Email to: security-alert@xxxxxx

Subscribe: To initiate a subscription to receive future HP Security Bulletin
alerts via Email:
http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins

Security Bulletin Archive: A list of recently released Security Bulletins is
available here:
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/

Software Product Category: The Software Product Category is represented in
the title by the two characters following HPSB.

3C = 3COM
3P = 3rd Party Software
GN = HP General Software
HF = HP Hardware and Firmware
MP = MPE/iX
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PI = Printing and Imaging
PV = ProCurve
ST = Storage Software
TU = Tru64 UNIX
UX = HP-UX

Copyright 2015 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or editorial errors
or omissions contained herein. The information provided is provided "as is"
without warranty of any kind. To the extent permitted by law, neither HP or
its affiliates, subcontractors or suppliers will be liable for
incidental,special or consequential damages including downtime cost; lost
profits; damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration. The
information in this document is subject to change without notice.
Hewlett-Packard Company and the names of Hewlett-Packard products referenced
herein are trademarks of Hewlett-Packard Company in the United States and
other countries. Other product and company names mentioned herein may be
trademarks of their respective owners.

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