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Security Bulletin: z/TPF is affected by the OpenSSL error state security vulnerability

Created by Igets Administrator on
Published URL:
https://www.ibm.com/support/pages/node/304661
304661

Security Bulletin


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

VRMFAPARRemediation/First Fix
z/TPF1.1.13 - 1.1.14APAR PJ45174Apply the APAR.

Workarounds and Mitigations

None.

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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.

References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

[{"Product":{"code":"SSZL53","label":"z\/Transaction Processing Facility (TPF)"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"z\/TPF","Platform":[{"code":"PF036","label":"z\/TPF"}],"Version":"1.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
02 August 2018

UID

swg22013681

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