IBM Support

Security Bulletin: OpenSSL ASN.1 denial of service

Created by Haan Ming Lim on
Published URL:
https://www.ibm.com/support/pages/node/733669
733669

Security Bulletin


Summary

The Windows and z/OS Security Identity Adapters are now upgraded to a more current release to correct CVE (CVE-2018-0739) "OpenSSL ASN.1 denial of service".

Vulnerability Details

CVEID: CVE-2018-0739

Description: OpenSSL is vulnerable to a denial of service. By sending specially crafted ASN.1 data with a recursive definition, a remote attacker can exploit this vulnerability to consume excessive stack memory.

CVSS Base Score: 5.3
CVSS Temporal Score: For the current score, see https://exchange.xforce.ibmcloud.com/vulnerabilities/140847
CVSS Environmental Score*: CVSS 3.0 Temporal Score
CVSS Vector: (CVSS:5.3/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM Security Identity Manager v6.0 Adapters for Windows and z/OS platforms
Security Identity Adapters v7.x for Windows and z/OS platforms

Remediation/Fixes

Obtain the latest GA levels of 6.0 or 7.x adapters, as found on the Fix Link pages listed below:

Get Notified about Future Security Bulletins

References

Off

*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.

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Document Information

Modified date:
16 December 2018

UID

ibm10733669