Security Bulletin: A vulnerability in netty affects IBM Spectrum Scale Transparent Cloud TierCVE-(2021-21295)

Summary

Netty is used by IBM Spectrum Scale Transparent Cloud Tiering. IBM Spectrum Scale Transparent Cloud Tiering has addressed the applicable CVE.

Vulnerability Details

CVEID:CVE-2021-21295
**DESCRIPTION:**Netty is vulnerable to HTTP request smuggling, caused by improper validation of Content-Length header by the Http2MultiplexHandler. By sending specially crafted HTTP request headers, an attacker could exploit this vulnerability to poison a web-cache, perform an XSS attack, or obtain sensitive information from request.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197999 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

For Transparent Cloud Tiering 1.1.1.0 thru 1.1.8.4, apply Transparent Cloud Tiering 1.1.8.4 bundled with IBM Spectrum Scale V5.1.1.3 available from FixCentral at:

https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.1.1&platform=All&function=all

Workarounds and Mitigations

None