Security Bulletin: IBM CICS TX Advanced is vulnerable to a denial of service, caused by an infinite loop flaw in Golang Go (CVE-2021-27918).

Summary

IBM CICS TX Advanced is vulnerable to a denial of service, caused by an infinite loop flaw in Golang Go (CVE-2021-27918). The fix removes this vulnerability from IBM CICS TX Advanced.

Vulnerability Details

CVEID:CVE-2021-27918
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by an infinite loop flaw when using xml.NewTokenDecoder with a custom TokenReader. By persuading a victim to open a specially-crafted XML content, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198075 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability by downloading and applying the interim fix from the table below.

Product

|

Version

|

Defect

|

Remediation / First Fix

—|—|—|—

IBM CICS TX Advanced

|

11.1

|

127799

|

Download the fix from here

Workarounds and Mitigations

None