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(HP Issues Additional Patches) Common Desktop Environment (CDE) DtSvc Library Buffer Overflow May Let Local Users Obtain Root Privileges
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Date: Feb 23 2002
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Impact: Execution of arbitrary code via local system, Root access via local system, User access via local system
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Fix Available: Yes
Vendor Confirmed: Yes
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Description: IBM reported a buffer oveflow vulnerability in CDE DtSvc library for IBM's AIX operating system. A local user can execute arbitrary code and gain elevated privileges on the host, potentially including root level privileges.
It is reported that a buffer overflow vulnerability has been found in the Common Desktop Environment (CDE) libDtSvc.a library. The
vulnerability can be triggered when a local user passes a specially coded string to any of the "dt" commands (e.g., dtprintinfo,
dtterm) using the "-session" option.
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Impact: A local user can execute arbitrary code with root level privileges, gaining root level access on the host.
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Solution: The vendor has released additional patches (for 10.24 and 11.04). The following is a list of all available patches:
10.10,
PHSS_25785
10.20, PHSS_25786
10.24, PHSS_26029
11.00, PHSS_25787
11.04, PHSS_26029
11.11, PHSS_25788
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Vendor URL: www.ibm.com/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: UNIX (HP/UX)
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Underlying OS Comments: IBM AIX 4.3 and 5.1; other UNIX operating systems may be affected
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Reported By: support_feedback@us-support.external.hp.com (IT Resource Center )
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 21 Feb 2002 13:41:13 -0800 (PST)
From: support_feedback@us-support.external.hp.com (IT Resource Center )
Subject: HP-UX security bulletins digest
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Document ID: HPSBUX0111-175
Date Loaded: 20020220
Title: Sec. Vulnerability in dtspcd (rev. 2)
TEXT
-----------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00175
Originally issued: 12 Nov. 2001
**Revision 01** 16 Jan. 2002
**Revision 02** 20 Feb. 2002
-----------------------------------------------------------------
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.
------------------------------------------------------------------
PROBLEM: Buffer overflow in dtspcd
PLATFORM: HP9000 Series 700/800 running HP-UX releases 10.10,
10.20, 10.24, 11.00, 11.04, and 11.11.
DAMAGE: Possible unauthorized access, possible increased privileges.
** Rev.1 **
SOLUTION: Install the appropriate patch for the HP-UX release:
--->>>> 10.10 PHSS_25785
--->>>> 10.20 PHSS_25786
** Rev.2 **
--->>>> 10.24 PHSS_26029
--->>>> 11.00 PHSS_25787
** Rev.2 **
--->>>> 11.04 PHSS_26029
--->>>> 11.11 PHSS_25788
** Rev.1 **
** Rev.2 **
MANUAL ACTIONS: None
AVAILABILITY:
** Rev.1 **
** Rev.2 **
--->>>> The patches for 10.10, 10.20, 10.24, 11.00, 11.04,
--->>>> 11.11 are available now.
CHANGE SUMMARY: ** Rev.1 ** Patches available for 10.10, 10.20,
11.00, 11.11.
CHANGE SUMMARY: ** Rev.2 ** Patches available for 10.24 and 11.04.
------------------------------------------------------------------
A. Background
A buffer overflow has been reported in dtspcd. It may be
possible to exploit this overflow to gain unauthorized access.
B. Fixing the problem
** Rev.1 **
** Rev.2 **
--->>>> Patches available for 10.10, 10.20, 10.24,
--->>>> 11.00, 11.04, 11.11
C. Recommended solution
** Rev.1 **
** Rev.2 **
--->>>> Install the appropriate patch for 10.10, 10.20,
--->>>> 10.24, 11.00, 11.04, 11.11.
--->>>> Note: Some of the patches have dependencies on other patches.
--->>>> This is documented in the patch text.
** Rev.2 **
--->>>> All patches are now available. The ftp site which had
--->>>> temporary fix files will be deleted.
D. 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.
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.
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.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix
On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".
E. To report new security vulnerabilities, send email to
security-alert@hp.com
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 security-alert@hp.com.
Permission is granted for copying and circulating this
Bulletin to Hewlett-Packard (HP) customers (or the Internet
community) for the purpose of alerting them to problems,
if and only if, the Bulletin is not edited or changed in
any way, is attributed to HP, and provided such reproduction
and/or distribution is performed for non-commercial purposes.
Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.
________________________________________________________________
-----End of Document ID: HPSBUX0111-175--------------------------------------
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