Security Bulletin: IBM Cloud Pak for Integration is vulnerable to multiple Go vulnerabilities

Summary

IBM Cloud Pak for Integration is vulnerable to multiple Go vulnerabilities with details of each below

Vulnerability Details

CVEID:CVE-2021-33196
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a flaw in the NewReader and OpenReader functions in archive/zip. By persuading a victim to open a specially-crafted archive file, a remote attacker could exploit this vulnerability to cause a panic or an unrecoverable fatal error, and results in a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206602 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-2021-34558
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by the failure to properly assert that the type of public key in an X.509 certificate matches the expected type in the crypto/tls package. By persuading a victim to connect to a specially-crafted TLS server, a remote attacker could exploit this vulnerability to cause a TLS client to panic.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205578 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-29923
**DESCRIPTION:**Golang Go could allow a remote attacker to bypass security restrictions, caused by improper consideration for extraneous zero characters at the beginning of an IP address octet. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass access control based on IP addresses.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207025 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:CVE-2021-36221
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a race condition upon an ErrAbortHandler abort. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a net/http/httputil ReverseProxy panic.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207036 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-2021-33197
**DESCRIPTION:**Golang Go could allow a remote attacker to bypass security restrictions, caused by a flaw in the ReverseProxy in net/http/httputil. By sending a specially-crafted request, an attacker could exploit this vulnerability to drop arbitrary headers, including those set by the ReverseProxy.Director.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206603 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:CVE-2021-33198
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a flaw in the SetString and UnmarshalText methods of math/big.Rat. By sending a specially-crafted input, a remote attacker could exploit this vulnerability to cause a panic or an unrecoverable fatal error, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206604 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-2021-33195
**DESCRIPTION:**Golang Go could allow a remote attacker to execute arbitrary code on the system, caused by not following RFC 1035 rules in the LookupCNAME, LookupSRV, LookupMX, LookupNS, and LookupAddr functions in net. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206601 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Remediation/Fixes

Platform Navigator 2020.4.1 in****IBM Cloud Pak for Integration

Upgrade Platform Navigator 2020.4.1 to 2020.4.1-4-eus using the Operator upgrade process described in the IBM Documentation
<https://www.ibm.com/docs/en/cloud-paks/cp-integration/2020.4?topic=202041-upgrading-platform-navigator-component-deployment-interface&gt;

Platform Navigator version 2021.1 or 2021.2 in IBM Cloud Pak for Integration

Upgrade Asset Repository to 2021.3.1 using the Operator upgrade process described in the IBM Documentation

<https://www.ibm.com/docs/en/cloud-paks/cp-integration/2021.3?topic=upgrading-deployment-navigation-interface-platform-navigator&gt;

**

Asset Repository version 2020.4.1 in IBM Cloud Pak for Integration**

Upgrade Asset Repository to 2020.4.1-3-eus using the Operator upgrade process described in the IBM Documentation

<https://www.ibm.com/docs/en/cloud-paks/cp-integration/2020.4?topic=components-upgrading-asset-repository&gt;

Asset Repository version 2021.1 or 2021.2 in IBM Cloud Pak for Integration

Upgrade Asset Repository to 2021.2.1-1 using the Operator upgrade process described in the IBM Documentation

<https://www.ibm.com/docs/en/cloud-paks/cp-integration/2021.3?topic=runtimes-upgrading-automation-assets&gt;

Workarounds and Mitigations

None