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-2022-42703 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a use-after-free flaw related to leaf anon_vma double reuse in mm/rmap.c. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/238058 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

**CVEID:**CVE-2022-4378 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a stack-based buffer overflow in the __do_proc_dointvec function. By executing a specially-crafted program, a local authenticated attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/242006 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

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:

V6.1.8.1 or later

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

V6.1.2.7 or later

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

Workarounds and Mitigations

None