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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.095 -- HP Support Information Digests HPSBUX0102-144 Sec. Vulnerability in BIND 5 March 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BIND Vendor: ISC Operating System: HP-UX 11.11 HP-UX 11.04 HP-UX 11.00 HP-UX 10.24 HP-UX 10.20 HP-UX 10.10 HP-UX 10.01 Platform: HP9000 servers and workstations Impact: Denial of Service Execute Arbitrary Code/Commands User Access Access Required: Remote Ref: AA-2001.01 ESB-2001.039 ESB-2001.037 ESB-2000.343 - --------------------------BEGIN INCLUDED TEXT-------------------- Document ID: HPSBUX0102-144 Date Loaded: 20010228 Title: Sec. Vulnerability in BIND - ---------------------------------------------------------------------- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0144, 28 Feb. '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. - ---------------------------------------------------------------------- ISSUE: The CERT advisories CA-2001-02 and CA-2000-20 detailed several BIND vulnerabilities including buffer overflows, input validation error, and disclosure environment variables and denial of service. See: http://www.cert.org/advisories/CA-2001-02.html and http://www.cert.org/advisories/CA-2000-20.html . The Internet Software Consortium has posted information about all vulnerabilities at the following URL: http://www.isc.org/products/BIND/bind-security.html PLATFORM: HP9000 servers and workstations running HP-UX releases 11.11, 11.00, 11.04, 10.20, 10.24, 10.10, and 10.01. POSSIBLE RESULT: May allow remote users to disrupt normal operation on the DNS servers, other services could be impacted if these vulnerabilities are exploited. SOLUTION: Apply patches for HP-UX releases as follows: for 11.00: PHNE_23274 (BIND 4.9.7) 11.00: * (BIND 8.1.2) 11.11: PHNE_23275 (BIND 8.1.2) 11.04: PHNE_22919 (BIND 4.9.7) 10.20: PHNE_23277 (BIND 4.9.7) 10.24: PHNE_23439 (BIND 4.9.7) 10.10: PHNE_23277 (BIND 4.9.7) 10.01: PHNE_23277 (BIND 4.9.7) * See Section B below. AVAILABILITY: The patches are available now. - ----------------------------------------------------------------------- I. A. Background The CERT advisories (CA-2001-02, and CA-2000-20) detailed several BIND vulnerabilities. The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. Complete details can be found at: http://www.cert.org/advisories/CA-2001-02.html and http://www.cert.org/advisories/CA-2000-20.html . B. Recommended solution The problem can be fully resolved by applying the appropriate patches to the system from http://itrc.hp.com. For HP-UX releases 11.00: PHNE_23274 (BIND 4.9.7) 11.00: * (BIND 8.1.2) 11.11: PHNE_23275 (BIND 8.1.2) 11.04: PHNE_22919 (BIND 4.9.7) 10.20: PHNE_23277 (BIND 4.9.7) 10.24: PHNE_23439 (BIND 4.9.7) 10.10: PHNE_23277 (BIND 4.9.7) 10.01: PHNE_23277 (BIND 4.9.7) * Note: If you have upgraded HP-UX 11.00 BIND to 8.1.2 via the WEB upgrade you need to upgrade with the latest version of the BIND package, 1.3 via the website below. http://www.software.hp.com/products/DNS_BIND/index.html Registration for the download is necessary. Once done, there is a link for installation instructions underneath the download button. 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 Under the Maintenance and Support Menu (Electronic Support Center): click on the "more..." link. Then - Use the 'Login' tab at the left side of the screen to login using your ID and password. Check with your system administrator to see if you have an existing login or use the "Register" button at the left to create a login. You will need to login in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password. Under the Maintenance and Support Menu, click on the "more..." link. 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 "hp security bulletins archive" near the bottom. Once in the archive the top link is to our current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. 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: HPSBUX0102-144-------------------------------------- - --------------------------END INCLUDED TEXT-------------------- 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 iQCVAwUBOqOcyih9+71yA2DNAQEOeAP+JtiUXrKS5GFJbPxe/0y6OcPEVOwC1TXE hqASjjEOGuR1pKRT9I5azbu87POmRnSCF6SKsusTSImx3pRIi1fV3pdfbdX6p9c4 GsXYnRirEpO2mIibvsVLjuohouGYu6nAmSymh+UzfLRbDaCKUDC+uhQF0TYkYL3V kEF87LX9OyY= =o964 -----END PGP SIGNATURE-----