Security Bulletin: Multiple Multiple Vulnerabilities in Docker affect Cloud Pak System [CVE-2023-28840, CVE-2023-28841, CVE-2023-28842]

Summary

Vulnerabilities were identified within Docker shipped as pattern type (pType) component with Cloud Pak System Software. IBM Cloud Pak System Software addressed these vulnerabilities [CVE-2023-28840, CVE-2023-28841, CVE-2023-28842].

Vulnerability Details

CVEID:CVE-2023-28840
**DESCRIPTION:**Moby is vulnerable to a denial of service, caused by an unprotected alternate channel within encrypted overlay networks. By sending a specially crafted request to inject arbitrary Ethernet frames into the encrypted overlay network, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251927 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L)

CVEID:CVE-2023-28841
**DESCRIPTION:**Moby could allow a remote attacker to obtain sensitive information, caused by the missing of encrypted sensitive data within the overlay network driver. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251928 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N)

CVEID:CVE-2023-28842
**DESCRIPTION:**Moby could allow a remote attacker to bypass security restrictions, caused by an unprotected alternate channel within encrypted overlay networks. By sending a specially crafted request, an attacker could exploit this vulnerability to inject arbitrary Ethernet frames into the encrypted overlay network by encapsulating them in VXLAN datagrams.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251929 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N)

Affected Products and Versions

Remediation/Fixes

For earlier and unsupported versions of the products, IBM recommends upgrading to a fixed, supported version of the product.

The recommended solution is to apply the applicable IBM Cloud Pak System Interim Fix as soon as practical.

IBM Cloud Pak System V2.3.3.6 Interim Fix 1 provides pType docker v20.10.24.

For IBM Cloud Pak System V2.3.0.1 - V2.3.3.5,

- Upgrade to IBM Cloud Pak System V2.3.3.6

- apply Cloud Pak System v2.3.3.6 Interim Fix 1 at IBM Fix Central.

Information on upgrading here <https://www.ibm.com/support/pages/node/6959035&gt;

For IBM Cloud Pak System V2.3.3.6

- Upgrade to Cloud Pak System v2.3.3.6 Interim Fix 1 at IBM Fix Central.

Information on upgrading here <https://www.ibm.com/support/pages/node/7017280&gt;

Workarounds and Mitigations

None