Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2001.428 -- HP Support Information Digests HPSBUX0107-156
Sec. Vulnerability in setrlimit(1M) (rev. 1)
15 October 2001
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: HP-UX
Vendor: Hewlett-Packard
Operating System: HP-UX 10.01
HP-UX 10.10
HP-UX 10.20
HP-UX 10.24
HP-UX 10.26
HP-UX 11.00
HP-UX 11.04
HP-UX 11.11
Platform: HP9000 Series 700
HP9000 Series 800
Impact: Denial of Service
Access Required: Existing Account
Ref: ESB-2001.269
- --------------------------BEGIN INCLUDED TEXT--------------------
Document ID: HPSBUX0107-156_
Date Loaded: 20011008
Title: Sec. Vulnerability in setrlimit(1M) (rev. 1)
- ---------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0156,
Originally issued 2 July '01
Last changed: 08 October '01
---------------------------------------------------------------
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: The setrlimit() allows incorrect core files
** Rev.1 **
PLATFORM: HP9000 Series 700/800 running HP-UX releases 10.01, 10.10,
- ---->>>> 10.20, 10.24, 10.26, 11.04, and 11.00 only.
DAMAGE: Possible denial of service
SOLUTION: Install the appropriate patch for the HP-UX release:
** Rev.1 **
11.11 PHKL_23423,
11.04 PHKL_23886,
11.00 PHKL_23628,
10.20 700 PHKL_22701,
10.20 800 PHKL_22702,
10.24 700 PHKL_24249,
10.24 800 PHKL_24250,
---->>>> 10.26 700 PHKL_25243,
---->>>> 10.26 800 PHKL_25244,
10.10 700 PHKL_23477,
10.10 800 PHKL_23478,
10.01 700 PHKL_23512,
10.01 800 PHKL_23513.
MANUAL ACTIONS: None
AVAILABILITY: The patches are available now.
CHANGE SUMMARY: Updated patch information.
---------------------------------------------------------------
A. Background
Hewlett-Packard has discovered that a process that at one time was
setuid/setgid could create corefiles or be attached to with a
debugger. If the process core file's size limit has been set to 0
in setrlimit(), when the process aborts, the core processing is
incorrect.
B. Recommended solution
After applying this patch, the kernel now remembers that the
process was at one time setuid/setgid, and disallow corefiles
and debugger attachment. If the process core file size limit
has been set to zero, it obeys.
Application of the appropriate patch selected from the list below
completely solves this problem.
** Rev.1 **
For HP-UX release:
11.11 PHKL_23423,
11.04 PHKL_23886,
11.00 PHKL_23628,
10.20 700 PHKL_22701,
10.20 800 PHKL_22702,
10.24 700 PHKL_24249,
10.24 800 PHKL_24250,
---->>>> 10.26 700 PHKL_25243,
---->>>> 10.26 800 PHKL_25244,
10.10 700 PHKL_23477,
10.10 800 PHKL_23478,
10.01 700 PHKL_23512,
10.01 800 PHKL_23513.
Note: Many of these patches have dependencies. A reboot will
be required.
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.
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".
D. 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: HPSBUX0107-156_-------------------------------------
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBO8r2MSh9+71yA2DNAQGA3gP/cWN6sYOZI1LFADJfLVVKtP9QLMSYevnq
evgsJppLLTc7M5VG5OJcKf/Zrl683HVqqFRJBR2UZxRxqGiT9Rxc80MMw9qllkAN
582q2IH6QkHr2nOOEJfS1RyS8D3ZEU1VzAgVZd66+nkVvOV0GfnBEwRJgNOtHE5/
KtO8HHrW/uA=
=RpT+
-----END PGP SIGNATURE-----