Security Bulletin: IBM Netezza for Cloud Pak for Data is vulnerable to denial of service due to Golang net package (CVE-2021-27918, CVE-2021-44716, CVE-2021-31525)

Summary

Golang packages are used in IBM Netezza for Cloud Pak for Data. Golang net sub module is vulnerable to denial of service. Vulnerability is addressed by upgrading Golang to version 1.17.

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)

CVEID:CVE-2021-44716
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by an uncontrolled memory consumption in the header canonicalization cache in net/http. By sending HTTP/2 requests, a remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216553 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-2021-31525
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a flaw in net/http. By sending a specially-crafted header to ReadRequest or ReadResponse. Server, Transport, and Client, a remote attacker could exploit this vulnerability to cause a (panic) denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202709 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

Remediation/Fixes

**IBM strongly recommends addressing the vulnerability now for affected versions listed by applying the fix.**​

Workarounds and Mitigations

None