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Security Bulletin: OpenSSL publicly disclosed vulnerabilities affect MessageGateway (CVE-2021-23841 CVE-2021-23840)

Security Bulletin


Summary

MessageGateway has addressed the following vulnerabilities by updating the version of OpenSSL.

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)

CVEID:   CVE-2021-23841
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in the X509_issuer_and_serial_hash() function. By parsing the issuer field, 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/196847 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 WIoTP MessageGateway5.0.0.1



Remediation/Fixes

Product

VRMFAPARRemediation/First Fix
IBM WIoTP MessageGateway
5.0.0.2
IT35952
5.0.0.2-IBM-IMA-IFITIT35958




Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

23 Feb 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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Document Information

Modified date:
23 February 2021

UID

ibm16416707