SB2022060606 - Multiple vulnerabilities in IBM Netezza Host Management

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-4155)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to the OS kernel does not impose correctly security restrictions. A local user can gain access to sensitive information on the system.

2) Use-after-free (CVE-ID: CVE-2020-36385)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in drivers/infiniband/core/ucma.c, because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called. A local user can run a specially crafted program to trigger the use-after-free error and execute arbitrary code with elevated privileges.

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-0492)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a logic error within the cgroup_release_agent_write() function in  kernel/cgroup/cgroup-v1.c. A local user can use the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation.

Remediation

Install update from vendor's website.

References

• https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulnerabilities-from-kernel-affect-ibm-netezza-host-management-18/"
• https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulnerabilities-from-kernel-affect-ibm-netezza-host-management-18/</a><br>
• https://www.ibm.com/support/pages/node/6590947<br><br></p>