Security Bulletin: Vulnerability in Netty affects watsonx.data

Summary

Netty is vulnerable to a denial of service. For CVE-2019-9518, a remote attacker could cause watsonx.data to consume excessive CPU resources by sending a set of frames without an end-of-stream flag, eventually causing a denial of service condition. This would affect watsonx.data. For CVE-2020-11612, watsonx.data is not affected.

Vulnerability Details

CVEID:CVE-2019-9518
**DESCRIPTION:**Multiple vendors are vulnerable to a denial of service, caused by a Empty Frame Flooding attack. By sending a stream of frames with an empty payload and without the end-of-stream flag, a remote attacker could consume excessive CPU resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/164904 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-2020-11612
**DESCRIPTION:**Netty is vulnerable to a denial of service, caused by unbounded memory allocation while decoding a ZlibEncoded byte stream in the ZlibDecoders. By sending a large ZlibEncoded byte stream, a remote attacker could exploit this vulnerability to exhaust memory resources.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180530 for the current score.
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

Remediation/Fixes

The product needs to be installed or upgraded to the latest available level watsonx.data 2.0.2 or watsonx.data on CPD 5.0.2. Installation/upgrade instructions can be found here: <https://www.ibm.com/docs/en/watsonx/watsonxdata/2.0.x?topic=deployment-installing&gt;

Workarounds and Mitigations

None