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Home » Hacking News » Hewlett Packard HPSBUX0305-260: Ipcs buffer overflow

Hewlett Packard HPSBUX0305-260: Ipcs buffer overflow

by Nikola Strahija on May 20th, 2003 It has been reported that Ipcs contains a potential buffer overflow vulnerability which could allow locat attackers to get unauthorized access or issue denial-of-service attacks.

Originally issued: 19 May 2003
SSRT3491 Potential Security Vulnerability in ipcs(1)

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.

PROBLEM: ipcs(1) has a potential buffer overflow.

IMPACT: Potential for local users to get unauthorized access,
create denial of service (DoS).

PLATFORM: HP9000 Series 700/800 running HP-UX release 11.00 only.

SOLUTION: Until a final patch is available download and install
the fixed version depot from the ftp site.

Download and install fixed versions from the
ftp site, (See below).

AVAILABILITY: This bulletin will be revised when an official
patch is released.
A. Background
A potential buffer overflow in ipcs(1) has been identified
and now has been fixed. This problem only affects HP-UX
release 11.00.

NOTE: This problem does not impact HP NonStop Servers,
HP OpenVMS, nor Tru64 UNIX/Trucluster servers.

The SSRT thanks Davide Del Vecchio for reporting this
potential vulnerability to HP.

B. Recommended solution
HP has prepared a temporary depot file that can be installed
to fully rectify the problem. This temporary depot file MUST
be removed before the official patch is installed. Failure to
properly remove this could cause corruption of the system and
inadvertently reintroduce the problem at a later time when
the temporary patch is removed.

Until a final patch is available, download and install the
UNOF_29043.depot from:

System: (
Login: ipcs
Password: ipcs1

FTP Access:

Note: There is an ftp defect in IE5 that may result in
a browser hang. To work around this:
- Select Tools -> Internet Options -> Advanced
- Un-check the option: [ ] Enable folder view for FTP sites.

The file is: UNOF_29043.depot

cksum 1511742840 92160 UNOF_29043.depot

If you wish to verify the md5 sums please refer to:

Patch sums and the MD5 program

MD5 (UNOF_29043) = 8C3F0818C00413ACE87EB5E4B735CAC9

Copy the depot to a protected directory, and launch Software
Distributor (SD) to install.

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

Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
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gain access to many areas of the ITRC. Remember to save the
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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.


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:

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
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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:>

The security patch matrix is also available via anonymous

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:

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]


(c)Copyright 2003 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.

- --

Version: PGP 8.0


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