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Security Bulletin: Vulnerabilities in OpenSSL affect IBM Sterling Connect:Direct for UNIX (CVE-2016-2108, CVE-2016-2107).

Security Bulletin


Summary

OpenSSL vulnerabilities were disclosed on May 3, 2016 by the OpenSSL Project. OpenSSL is used by IBM Sterling Connect:Direct for UNIX. IBM Sterling Connect:Direct for UNIX has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2016-2108
DESCRIPTION: OpenSSL could allow a remote attacker to execute arbitrary code on the system, caused by a buffer underflow when deserializing untrusted ASN.1 structures and later reserializing them. An attacker could exploit this vulnerability to corrupt memory and trigger an out-of-bounds write and execute arbitrary code on the system.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112853 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:H)

CVEID: CVE-2016-2107
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error when the connection uses an AES CBC cipher and the server support AES-NI. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via the POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt traffic.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112854 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM Sterling Connect:Direct for Unix 4.1.0
IBM Sterling Connect:Direct for Unix 4.0.0

Remediation/Fixes

V.R.M.F

APARRemediation/First Fix
4.1.0IT15554Apply 4.1.0.4.iFix081, available on Fix Central
4.0.0IT15554Apply 4.0.00 Fix 166, available on IWM

Note: A fix for CVE-2016-2108 was provided in OpenSSL versions 1.0.1o and 1.0.2c and was previously addressed by IBM Sterling Connect:Direct for UNIX.

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

Off

Acknowledgement

None

Change History

7 June 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

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:
24 July 2020

UID

swg21983909