Security Bulletin: IBM QRadar Network Security is affected by denial of service vulnerabilities in OpenSSL (CVE-2021-23840, CVE-2021-23841)

Security Bulletin

Summary

IBM QRadar Network Security has addressed vulnerabilities in OpenSSL. The issues could lead to a denial of service.

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

IBM QRadar Network Security 5.4.0

IBM QRadar Network Security 5.5.0

Remediation/Fixes

IBM recommends customers update their systems promptly.

Product	VRMF	Remediation/First Fix
IBM QRadar Network Security	5.4.0	Install Firmware 5.4.0.15 from the Available Updates page of the Local Management Interface, or by performing a One Time Scheduled Installation from SiteProtector. Or Download Firmware 5.4.0.15 from IBM Security License Key and Download Center and upload and install via the Available Updates page of the Local Management Interface.
IBM QRadar Network Security	5.5.0	Install Firmware 5.5.0.10 from the Available Updates page of the Local Management Interface, or by performing a One Time Scheduled Installation from SiteProtector. Or Download Firmware 5.5.0.10 from IBM Security License Key and Download Center and upload and install via the Available Updates page of the Local Management Interface.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

28 Mar 2022: 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 QRadar Network Security is affected by denial of service vulnerabilities in OpenSSL (CVE-2021-23840, CVE-2021-23841)