SB2022091612 - Multiple vulnerabilities in IBM Netezza Host Management

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Excessive Iteration (CVE-ID: CVE-2021-28950)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive iteration in fs/fuse/fuse_i.h in the Linux kernel. A local user can run a specially crafted program to perform a denial of service attack.

2) Improper Resource Shutdown or Release (CVE-ID: CVE-2020-36322)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists in the FUSE filesystem implementation in the Linux kernel due to fuse_do_getattr() calls make_bad_inode() in inappropriate situations. A local user can run a specially crafted program to trigger kernel crash.

Note, the vulnerability exists due to incomplete fix for #VU58207 (CVE-2021-28950).

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-11/"
• https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulnerabilities-from-kernel-affect-ibm-netezza-host-management-11/</a><br>
• https://www.ibm.com/support/pages/node/6474223<br><br></p>