Security Bulletin
Summary
IBM MQ have addressed a vulnerability whereby OpenSSL could allow a remote attacker to execute a denial of service attack by sending specially crafted ASN.1 data.
OpenSSL is used by IBM MQ Advanced Message Security on the IBM i platform only.
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 could exploit this vulnerability to consume excessive stack memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/140847 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:N/A:L)
Affected Products and Versions
IBM MQ v8.0
- Maintenance levels 8.0.0.0 - 8.0.0.9
IBM MQ v9 LTS
- Maintenance levels 9.0.0.0 - 9.0.0.3
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References
Change History
22 June 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.
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Document Information
Modified date:
19 August 2022
UID
swg22015887