Security Bulletin: Multiple vulnerabilities in Golang Go affect Cloud Pak System

Summary

Multiple vulnerabilities in Golang Go affect Cloud Pak System. IBM Cloud Pak System has addressed these vulnerabilities.

Vulnerability Details

CVEID:CVE-2022-24921
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by improper input validation. By using a specially-crafted deeply nested expression, a remote attacker could exploit this vulnerability to cause a goroutine stack exhaustion, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221503 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-2020-29652
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a NULL pointer dereference in the golang.org/x/crypto/ssh component. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/193622 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-2022-24675
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a stack-based buffer overflow in encoding/pem in the Decode feature. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause the program to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/224866 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-2022-28327
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by improper input validaiton by the generic P-256 feature in crypto/elliptic. By sending a specially-crafted request with long scalar input, a remote attacker could exploit this vulnerability to cause a panic on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/224871 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-2021-44716
**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-2022-23773
**DESCRIPTION:**An unspecified error with not treating branches with semantic-version names as releases in cmd/go in Golang Go has an unknown impact and attack vector.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219443 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2021-44717
**DESCRIPTION:**Golang Go could allow a remote attacker to bypass security restrictions, caused by an error in the syscall.ForkExec() interface. By causing the erroneous closing of file descriptor 0 after file-descriptor exhaustion, an attacker could exploit this vulnerability to compromise data integrity and/or confidentiality in a somewhat uncontrolled way in programs linked with and using syscall.ForkExec().
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216563 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

Golang Go Vulnerabilities affect Cloud Pak System new UI and common API. In response to vulnerabilities IBM release Cloud Pak System v2.3.3.5 updates to Go v1.18.2.

For Cloud Pak System from 2.3.3.0 through v.2.3.3.4

Upgrade to Cloud Pak System v2.3.3.5 available at FixCentral.

Information on upgrading at: <http://www.ibm.com/support/docview.wss?uid=ibm10887959&gt;.

For unsupported releases of the product IBM strongly recommends to upgrade to supported fixed release of the product.

Workarounds and Mitigations

None