copyright
|
disclaimer
|
privacy
|
contact
HOME
About
AusCERT
Membership
Contact Us
PKI Services
Training
Publications
Sec. Bulletins
Conferences
News & Media
Services
Web Log
Site Map
Site Help
Member login
Login »
Become a member »
Home
»
Security Bul...
» ESB-2001.529 -- HP Support Information Digests HPSBT...
ESB-2001.529 -- HP Support Information Digests HPSBTL0112-003 -- Security vulnerabilities in the kernel
Date:
10 December 2001
Click here for printable version
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.529 -- HP Support Information Digests HPSBTL0112-003 Security vulnerabilities in the kernel 10 December 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: HP Secure OS software for Linux Release 1.0 Vendor: Hewlett-Packard Platform: Intel Impact: Root Compromise Denial of Service - --------------------------BEGIN INCLUDED TEXT-------------------- Document ID: HPSBTL0112-003 Date Loaded: 20011206 Title: Security vulnerabilities in the kernel - --------------------------------------------------------------- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #003 Originally issued: 06 December '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: Security vulnerabilities in the kernel. PLATFORM: Any system running HP Secure OS software for Linux Release 1.0 DAMAGE: Potential for denial of service attacks and for local users to gain unauthorized root access. SOLUTION: Apply the appropriate patch. MANUAL ACTIONS: None AVAILABILITY: The patches are available now. - --------------------------------------------------------------- A. Background HP Secure OS software for Linux Release 1.0 was based upon the 2.4.5 version of the Linux kernel. Since that release, vulnerabilities have been discovered as follows: - i) a flaw in the syncookies mechanism used to protect a system against certain Denial Of Service (DOS) attacks. (Note: syncookies are not enabled in the default installation of Secure Linux Release 1.0.) ii) a flaw within the ptrace code within the kernel that could be exploited to allow unauthorized root access. These vulnerabilities are fixed in the Linux kernel version 2.4.9-12. A set of patches for HP Secure OS software for Linux has been produced using the 2.4.9-12 kernel sources as a base onto which the security features of HP Secure OS software for Linux have been ported. B. Fixing the problem Apply one of the following patches (depending upon the processor architecture on the installed system): Architecture Patch ID ------------ -------- i586 HPTL_00004 i686-UNP HPTL_00005 i686-SMP HPTL_00006 These patches are available as follows: - Use your browser to access 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. Remember to save the User ID assigned to you, and your password. This login provides access to many useful areas of the ITRC. Under the "Maintenance and Support" section, select "Individual Patches". In the field at the bottom of the page labeled "retrieve a specific patch by entering the patch name", enter {{ Patch number (s) }} For instructions on installing the patch, please see the install text file included in the patch. 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 access 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. Remember to save the User ID assigned to you, and your password. This login provides access to many useful areas of the ITRC. 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. 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. You ma also get the security-alert PGP key 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: HPSBTL0112-003-------------------------------------- - --------------------------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 iQCVAwUBPBTPQSh9+71yA2DNAQHaAQP8CBkarHzBIIbcnxe6wC6q2DCYhtWG7O/E 9jXQLLdKFDilBM3iihCmE4KUhJB96pwg68aC0e03vu73u7QL0VpQqH1+sO68kQLk pbMXHUr9/rZQWpUyMC7KdTsj1oVBba2wZXZirqz1MJpp5yzOi9y0E22EstkuJsnq SCQ1o8RGT0A= =ZM4p -----END PGP SIGNATURE-----
Comments? Click here
http://www.auscert.org.au/render.html?cid=1&it=1639