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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1628 GSKit patched in IBM Network Security Protection 31 May 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Network Security Protection Publisher: IBM Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-1447 CVE-2018-1428 CVE-2018-1427 CVE-2018-1426 CVE-2017-3736 CVE-2017-3732 CVE-2016-0705 Reference: ASB-2018.0093 ESB-2018.1331 ESB-2018.1196 ESB-2018.0660.4 ESB-2016.0543.2 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg22016549 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM Security Network Protection is affected by multiple vulnerabilities Summary Multiple security vulnerabilities (CVE-2018-1426, CVE-2018-1427, CVE-2018-1428, CVE-2017-3736, CVE-2017-3732, CVE-2016-0705, and CVE-2018-1447) have been discovered in GSKit used with IBM Security Network Protection. Vulnerability Details CVEID: CVE-2016-0705 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a double-free error when parsing DSA private keys. An attacker could exploit this vulnerability to corrupt memory and cause a denial of service. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111140 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:L) CVEID: CVE-2017-3732 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagating bug in the x86_64 Montgomery squaring procedure. An attacker could exploit this vulnerability to obtain information about the private key. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121313 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-2017-3736 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a carry propagation flaw in the x86_64 Montgomery squaring function bn_sqrx8x_internal(). An attacker with online access to an unpatched system could exploit this vulnerability to obtain information about the private key. CVSS Base Score: 5.9 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/134397 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) CVEID: CVE-2018-1428 DESCRIPTION: IBM GSKit uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. CVSS Base Score: 6.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139073 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) CVEID: CVE-2018-1427 DESCRIPTION: IBM GSKit contains several enviornment variables that a local attacker could overflow and cause a denial of service. CVSS Base Score: 6.2 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139072 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2018-1426 DESCRIPTION: IBM GSKit duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which could result in duplicate Session IDs and a risk of duplicate key material. CVSS Base Score: 7.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139071 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N) CVEID: CVE-2018-1447 DESCRIPTION: The GSKit CMS KDB logic fails to salt the hash function resulting in weaker than expected protection of passwords. A weak password may be recovered. Note: After update the customer should change password to ensure the new password is stored more securely. Products should encourage customers to take this step as a high priority action. CVSS Base Score: 5.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/139972 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) Affected Products and Versions IBM Security Network Protection 5.3.1 IBM Security Network Protection 5.3.3 Remediation/Fixes IBM Security Network Protection Firmware version 5.3.1 Download the fix from IBM Fix Central and install it via IBM Security Network Protection Local Management Interface. 5.3.1.16-XGS-All-Models-Hotfix-IF0001 IBM Security Network Protection Firmware version 5.3.3 Download the fix from IBM Fix Central and install it via IBM Security Network Protection Local Management Interface. 5.3.3.6-XGS-All-Models-Hotfix-IF0001 Workarounds and Mitigations None Change History 30 May 2018: 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. - --------------------------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. NOTE: Third Party Rights 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWw8sAmaOgq3Tt24GAQjmug/+PKcXQT07poqu2wqWRRudUsj8nfQnpQ2+ tljoWMMBEIRlSu6Juefla1HrbOF6FzJsVX65SRCGbMTI8oUv3ZRsUWgnLfvDZKPe pIjzGEUKgC7w/c+Qf/Emjih6tCFjOP9VYyoDaZQ9KOw2h2BfR9q6CPHlzA9MmnyL l5CWPSlMrty/g4OfL7KEYQMXVPi9RhMQoy+3ah4Yri8+CusDIOGQRYe6w7J09SpC 9Ms+FSzuZxNCD8m68hgQZId+IehgkLnbMJHj5giFirkguhfH6jwLQxKuIyaVbaij WSWHVssaiDJZx1W5jKl1m593JgEgxSwNhSYUTjA54BnPKY0oHMwsbOFZDKQdaYKQ TA+Qpgi0uY16czOSfBGSCvob9AbhWDzaO9bvaQ242eQTxgtT+sSUPbC+kNrRg4Cv J7+GZblpvsq9q29Kmde/8CyJ6HIbi8yWyht5aVlg1pB6MLdr3xQgGOrXYLKvaJYZ 0Rz+dAvdsZ4ukMqND95c5PXK2HrHZQlQ/wNl9gYOlvD6uIK/l4mDINByTiiiXq7B D7Ham3qFdxs+w9+NK8lnNwcGOYNvnKfBcijESKRpsHzq4G70fQqGVoOuKspbB/Jg X3/Z8HffrR66euv8MDieDpDUWXLinsy9VAFcgDjFvXmiHC60dvPO4iBfRfY/zhd2 kmifYWw+slM= =MgJG -----END PGP SIGNATURE-----