Security Bulletin: There are multiple vulnerabilities in the Linux Kernel used in IBM Elastic Storage System

Security Bulletin

Summary

There are security vulnerabilities in versions of Linux Kernel that are shipped with versions of IBM Elastic Storage System. A fix for these vulnerabilities is available.

Vulnerability Details

CVEID: CVE-2022-27666
DESCRIPTION: Linux Kernel is vulnerable to a buffer overflow, caused by improper bounds checking by the ESP transformation in net/ipv4/esp4.c and net/ipv6/esp6.c. By sending a large message, a local attacker could overflow a buffer and execute arbitrary code on the system or gain elevated privileges in some configurations.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/222414 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2021-4197
DESCRIPTION: Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by an unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem. By sending a specially-crafted request, an attacker could exploit this vulnerability to crash the system or escalate their privileges on the system.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/222455 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2021-20322
DESCRIPTION: Linux Kernel could allow a remote attacker to bypass security restrictions, caused by an error in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality that allows the ability to quickly scan open UDP ports. An off-path remote attacker could exploit this vulnerability to bypass the source port UDP randomization and affect the confidentiality and integrity of the system.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/212886 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Elastic Storage System	6.1.0.0 - 6.1.2.3
IBM Elastic Storage System	6.1.3.0 - 6.1.3.1

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:

V6.1.4.0 or later.

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Elastic+Storage+Server+(ESS)&release=6.1.4&platform=All&function=all

V6.1.2.4 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

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

25 Aug 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: There are multiple vulnerabilities in the Linux Kernel used in IBM Elastic Storage System