===================================================================== CERT-Renater Note d'Information No. 2004/VULN028 _____________________________________________________________________ DATE : 20/01/2004 HARDWARE PLATFORM(S) : HP9000 Servers. OPERATING SYSTEM(S) : Systems running B.11.00, B.11.04, B.11.11. ====================================================================== ----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0401-310 Originally issued: 13 January 2004 SSRT2341 calloc(3C) in HP-UX ----------------------------------------------------------------- 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: calloc miscalculates the memory requirements IMPACT: Potential Denial of Service PLATFORM: HP9000 Servers running B.11.00, B.11.04, B.11.11 only. SOLUTION: Apply the appropriate patch: PHCO_28425 for B.11.00 PHCO_29190 for B.11.04 PHCO_28427 for B.11.11 MANUAL ACTIONS: No AVAILABILITY: All patches are now available from ----------------------------------------------------------------- A. Background RUS-CERT Advisory 2002-08:02: Flaw in calloc and similar routines. Integer overflow can occur during the computation of the memory region size by calloc and similar memory allocation functions. As a result the function returns a buffer which is too small, possibly resulting in a subsequent buffer overflow. This affects primarily development environments. Reference: This problem also affects HP Tru64 UNIX/Trucluster Server. See Use the SEARCH IN feature box, enter SSRT2341 in the search window. NOTE: This problem does not impact HP NonStop Servers nor HP OpenVMS. 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 ============= OS-Core.C-MIN OS-Core.C-MIN-64ALIB OS-Core.CORE-64SLIB OS-Core.CORE-SHLIBS ProgSupport.PROG-AUX ProgSupport.PROG-AX-64ALIB ProgSupport.PROG-MIN fix: install PHCO_28425 or subsequent HP-UX B.11.04 ============= OS-Core.C-MIN OS-Core.C-MIN-64ALIB OS-Core.CORE-64SLIB OS-Core.CORE-SHLIBS ProgSupport.PROG-AUX ProgSupport.PROG-AX-64ALIB ProgSupport.PROG-MIN fix: install PHCO_29190 or subsequent HP-UX B.11.11 ============= OS-Core.C-MIN OS-Core.C-MIN-64ALIB OS-Core.CORE-64SLIB OS-Core.CORE-SHLIBS ProgSupport.PROG-AUX ProgSupport.PROG-AX-64ALIB ProgSupport.PROG-MIN fix: install PHCO_28427 or subsequent END AFFECTED VERSIONS B. Recommended solution Apply the appropriate patch: PHCO_28425 for B.11.00 PHCO_29190 for B.11.04 PHCO_28427 for B.11.11 NOTE: This issue has been fully resolved in HP-UX B.11.23 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) Fingerprint = 6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59 If you have problems locating the key please write to security-alert@hp.com. Please note that this key is for signing bulletins only and is not the key returned by sending 'get key' to security-alert@hp.com. 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. ----------------------------------------------------------------- (c)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. ________________________________________________________________ ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================