Overview

CDE, the default X Windows environment in HP-UX, ships with a libraray called libDtSvc. It has a locally-exploitable buffer overflow in some versions.

Description

Please see HP Security Bulletin HPSBUX0401-308 SSRT3492 for more details.

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Impact

A local user may be able to gain root-level access.

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Solution

Apply the appropriate vendor patch.

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Vendor Information

406406

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Hewlett-Packard Company __ Affected

Updated: March 23, 2004

Status

Affected

Vendor Statement

No statement from the vendor was given directly to CERT/CC regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

`-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0401-308
Originally issued: 13 January 2004
SSRT3492 libDtSvc

NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

The information in the following Security Bulletin should be
acted upon as soon as possible. Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer’s failure to fully implement instructions in this
Security Bulletin as soon as possible.

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PROBLEM: There is a buffer overflow in libDtSvc.

IMPACT: Potential root access by a local user.

PLATFORM: HP-UX B.11.00, B.11.04, B.11.11, B.11.22

SOLUTION: Apply the appropriate patch:
PHSS_28675 - B.11.00
PHSS_30167 - B.11.04
PHSS_28676 - B.11.11
PHSS_28682 - B.11.22

MANUAL ACTIONS: No

AVAILABILITY: The patches are available now.

A. Background

AFFECTED VERSIONS

The following is a list by HP-UX revision of
affected filesets or patches and fix information.
To determine if a system has an affected version,
search the output of “swlist -a revision -l fileset”
for an affected fileset or patch, then determine if
a fixed revision or applicable patch is installed.

HP-UX B.11.00

CDE.CDE-SHLIBS
fix: install PHSS_28675 or subsequent

HP-UX B.11.04

CDE.CDE-SHLIBS
fix: install PHSS_30167 or subsequent

HP-UX B.11.11

CDE.CDE-SHLIBS
fix: install PHSS_28676 or subsequent

HP-UX B.11.22

CDE.CDE-SHLIBS
fix: install PHSS_28682 or subsequent

END AFFECTED VERSIONS

B. Recommended solution

Apply the appropriate patch:

PHSS_28675 - B.11.00
PHSS_30167 - B.11.04
PHSS_28676 - B.11.11
PHSS_28682 - B.11.22

C. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to get to the HP IT Resource Center page
at:

<http://itrc.hp.com>

Use the ‘Login’ tab at the left side of the screen to login
using your ID and password. Use your existing login or the
“Register” button at the left to create a login, in order to
gain access to many areas of the ITRC. Remember to save the
User ID assigned to you, and your password.

In the left most frame select “Maintenance and Support”.

Under the “Notifications” section (near the bottom of
the page), select “Support Information Digests”.

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the “Update
Subscriptions” button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

NOTE: Using your itrc account security bulletins can be
found here:
<http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin>

To -gain access- to the Security Patch Matrix, select
the link for “The Security Bulletins Archive”. (near the
bottom of the page) Once in the archive the third link is
to the current Security Patch Matrix. Updated daily, this
matrix categorizes security patches by platform/OS release,
and by bulletin topic. Security Patch Check completely
automates the process of reviewing the patch matrix for
11.XX systems. Please note that installing the patches
listed in the Security Patch Matrix will completely
implement a security bulletin only if the MANUAL ACTIONS
field specifies “No.”

The Security Patch Check tool can verify that a security
bulletin has been implemented on HP-UX 11.XX systems providing
that the fix is completely implemented in a patch with no
manual actions required. The Security Patch Check tool cannot
verify fixes implemented via a product upgrade.

For information on the Security Patch Check tool, see:
<http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/>
displayProductInfo.pl?productNumber=B6834AA

The security patch matrix is also available via anonymous
ftp:

<ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/>

On the “Support Information Digest Main” page:
click on the “HP Security Bulletin Archive”.

The PGP key used to sign this bulletin is available from
several PGP Public Key servers. The key identification
information is:

2D2A7D59
HP Security Response Team (Security Bulletin signing only)
<[email protected]>
Fingerprint =
6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

If you have problems locating the key please write to
[email protected]. Please note that this key is
for signing bulletins only and is not the key returned
by sending ‘get key’ to [email protected].

D. To report new security vulnerabilities, send email to

[email protected]

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server, or by sending a message with a -subject- (not body)
of ‘get key’ (no quotes) to [email protected].

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©Copyright 2004 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company. Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

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If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23406406 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://ciac.llnl.gov/ciac/bulletins/o-057.shtml&gt;
• <http://www.securityfocus.com/advisories/6237&gt;
• <http://xforce.iss.net/xforce/xfdb/14828&gt;
• <http://www.osvdb.org/displayvuln.php?osvdb_id=16023&gt;

Acknowledgements

Thanks to the HP IT Resource Center for reporting this vulnerability.

This document was written by Jeffrey S. Havrilla

Other Information

CVE IDs:	CVE-2004-1764
Severity Metric:	7.13 Date Public: