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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.0551 Security patch for IBM z/TPF 23 February 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM z/TPF Publisher: IBM Operating System: IBM z/OS Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3737 Reference: ASB-2018.0026 ESB-2017.3144.2 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg22013681 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: z/TPF is affected by the OpenSSL error state security vulnerability Document information Software version: 1.1 Operating system(s): z/TPF Reference #: 2013681 Modified date: 21 February 2018 Summary z/TPF has addressed the OpenSSL error state mechanism security bypass vulnerability. Vulnerability Details CVEID: CVE-2017-3737 DESCRIPTION: OpenSSL could allow a remote attacker to bypass security restrictions, caused by a flaw in the \"error state\" mechanism when directly calling SSL_read() or SSL_write() for an SSL object after receiving a fatal error. An attacker could exploit this vulnerability to bypass the decryption or encryption process and perform unauthorized actions. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 136077 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) Affected Products and Versions z/TPF Enterprise Edition Version 1.1.13 - 1.1.14 Remediation/Fixes +---------------------------------------------------------------------------+ |Product |VRMF |APAR |Remediation/First Fix | |---------+------------------+-------------+--------------------------------| |z/TPF |1.1.13 - 1.1.14 |APAR PJ45174 |Apply the APAR. | +---------------------------------------------------------------------------+ Workarounds and Mitigations None. Important note IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk. Change History 21 February 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. 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." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. - --------------------------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 iQIVAwUBWo+7zox+lLeg9Ub1AQi00A/8DciGZ0IHVASXmVZ8ikPxsCH48NSReFGn CzcM3cpfEsWkxRiN17aQmpK/T52tS0fYpTI4FyecQs7jwAzxuIaH70EmLiDOGqIF 9UVbKuYFoznitxjqQLQBRAvUVR1funhBNdCXUAE0x55K9BpoSW4JDXQXrImfrXX1 6GcS1BmQK56ULS24sy97rDl+ZHXnEYzupy3W1i3gAae+jsudvs1l6gkbb9S74cb/ 7w5WDU/U3UrTV57HjCh6hb1gdWP7H29vwSkFCn4YfAUEg19PBhijtDN5c7AiQqS3 1ZEHkDSXIVhgQ6qMBa3/WQ3YYreCtIacejYlhNn8YtokimObbhOedCDccIwm3H+H AIBQ0bpyWuayNjcUkc42OLhRDqDf05KZh81whcaDd3xXruO4vJFMP3BchE2lOO0E wl5wI2RCXm67cpiPGRwOGOjgQ8lyfbw9Umc5+9qjEZ2Mmn6b4GCtY++bCNfb7GUf TY+1HkiAWgfDBJnOtxjelxoZ3evdYCoYiUwOyLuWFlX0M6qUFS42cNMHTGTqMO3P aPqytM3EUL9Xw+lqcQN59eX1VdPi2L9b3uJoEzEfOJE/6jM17cFik7U0/m0ugceq /lPSSZkENkVOVn42Atgj27EqTRgDZFlquDlG21Xu3SdI19zY543GkPNgMnrZTLTd Pp3Kfkh6FfE= =xVLW -----END PGP SIGNATURE-----