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IBM3617E5DB629BF3E4966913C6CBFB7FB0D83FD9726DE73DD22305E09D36598E97HistoryJun 22, 2021 - 5:33 p.m.
Security Bulletin: IBM MQ is vulnerable to an issue within OpenSSL (CVE-2021-23840)
2021-06-2217:33:28
www.ibm.com
44
ibm mq
openssl
vulnerability
ibm i
advanced messaging security
fix
apar se74947
EPSS
0.008
Percentile
82.3%
Summary
An issue was identified with OpenSSL which is shipped on IBM MQ for IBM i platforms and used within the Advanced Messaging Security component.
Vulnerability Details
CVEID:CVE-2021-23840
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by an integer overflow in CipherUpdate. By sending an overly long argument, an attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196848 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
|---|---|
| IBM MQ | 9.1 LTS |
| IBM MQ | 9.0 LTS |
| IBM MQ | 8.0 |
| IBM MQ | 9.2 LTS |
Remediation/Fixes
This issue was addressed under APAR SE74947
IBM MQ Version 8
IBM MQ Version 9.0
Apply interim fix for SE74947 for 9.0.0.11
IBM MQ Version 9.1 LTS
IBM MQ Version 9.2 LTS
Workarounds and Mitigations
None
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