Security Bulletin: IBM WebSphere MQ for HP NonStop Server is affected by OpenSSL vulnerability CVE-2021-3711

Security Bulletin

Summary

A buffer overflow issue described by CVE-2021-3711 was identified in the OpenSSL component of IBM WebSphere MQ.

Vulnerability Details

CVEID: CVE-2021-3711
DESCRIPTION: OpenSSL is vulnerable to a buffer overflow, caused by improper bounds checking by the EVP_PKEY_decrypt() function within implementation of the SM2 decryption. By sending specially crafted SM2 content, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208072 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
WebSphere MQ V5.3 for HP NonStop Server (MIPS and Itanium)	5.3.1

Remediation/Fixes

WebSphere MQ V5.3.1 for HPE NonStop	5.3.1.17	IT38363	Apply patch for APAR IT38363

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

24 Oct 2021: Initial Publication

*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.

Document Location

Worldwide

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Tips

Security Bulletin: IBM WebSphere MQ for HP NonStop Server is affected by OpenSSL vulnerability CVE-2021-3711