Security Bulletin: Multiple Linux Kernel vulnerabilities may affect IBM Elastic Storage System

Summary

There are some vulnerabilities in the Linux kernel, used by IBM Elastic Storage System, which could allow a denial of service. Fixes for these vulnerabilities are available.

Vulnerability Details

CVEID:CVE-2023-32233
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a use-after-free flaw in Netfilter nf_tables when processing batch requests. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges as root.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/254654 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-2124
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by an out-of-bounds access flaw in the XFS subsystem due to a missing metadata validation when mounting a user-supplied XFS disk image. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges or cause a denial of service condition.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253226 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-1637
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a flaw in the X86 CPU Power management options function. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information in the memory of the CPU, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251406 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

IBM recommends that you fix this vulnerability by upgrading affected versions of IBM Elastic Storage System 3000, 3200, 3500 and 5000 to the following code levels or higher:

V6.1.2.8 or later

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Elastic+Storage+Server+(ESS)&release=6.1.0&platform=All&function=all

V6.1.8.3 or later

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Elastic+Storage+Server+(ESS)&release=6.1.8&platform=All&function=all

Workarounds and Mitigations

None