22 November 2016
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2780 Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateways 22 November 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM DataPower Gateways Publisher: IBM Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-6306 CVE-2016-6304 CVE-2016-2183 CVE-2016-2182 CVE-2016-2178 CVE-2016-2177 Reference: ASB-2016.0098 ASB-2016.0095 ESB-2016.2665 ESB-2016.2664 ESB-2016.2517 ESB-2016.2494 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21992996 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateways Document information More support for: IBM DataPower Gateways Software version: 7.0.0, 7.1, 7.2, 7.5, 7.5.1, 7.5.2 Operating system(s): Firmware Reference #: 1992996 Modified date: 21 November 2016 Security Bulletin Summary SSL vulnerabilities were disclosed on September 22 and 26, 2016 by the OpenSSL Project. IBM DataPower Gateways has addressed the applicable CVEs. Vulnerability Details CVEID: CVE-2016-6304 DESCRIPTION: OpenSSL is vulnerable to a denial of service. By repeatedly requesting renegotiation, a remote authenticated attacker could send an overly large OCSP Status Request extension to consume all available memory resources. CVSS Base Score: 6.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117110 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2016-2182 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an out-of-bounds write in the TS_OBJ_print_bio function in crypto/bn/bn_print.c. A remote attacker could exploit this vulnerability using a specially crafted value to cause the application to crash. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116342 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) CVEID: CVE-2016-2177 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the incorrect use of pointer arithmetic for heap-buffer boundary checks. By leveraging unexpected malloc behavior, a remote attacker could exploit this vulnerability to trigger an integer overflow and cause the application to crash. CVSS Base Score: 5.9 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113890 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2016-2178 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DSA implementation that allows the following of a non-constant time codepath for certain operations. An attacker could exploit this vulnerability using a cache-timing attack to recover the private DSA key. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113889 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) CVEID: CVE-2016-6306 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by missing message length checks when parsing certificates. A remote authenticated attacker could exploit this vulnerability to trigger an out-of-bounds read and cause a denial of service. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117112 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L) CVEID: CVE-2016-2183 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the in the Triple-DES on 64-bit block cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) Affected Products and Versions IBM DataPower Gateways appliances all versions through 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206 and 220.127.116.11. Remediation/Fixes Fix is available in versions 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206 and 220.127.116.11. Refer to APAR IT17280 for URLs to download the fix. You should verify applying this fix does not cause any compatibility issues. For DataPower customers using versions 6.x and earlier versions, IBM recommends upgrading to a fixed, supported version/release/platform of the product. Workarounds and Mitigations None Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 https://www.openssl.org/news/secadv/20160922.txt https://www.openssl.org/news/secadv/20160926.txt Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement None Change History 21 November 2016 Original version published *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." 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