Security Bulletin
Summary
Vulnerabilities in the Linux kernel affect IBM Storage Virtualize products and could allow arbitrary code execution or denial of service. CVE-2023-6356 CVE-2023-6535 CVE-2023-6536 CVE-2023-5178 CVE-2023-45871 .
Vulnerability Details
CVEID: CVE-2023-6356
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in the NVMe driver. By sending specially crafted TCP packages when using NVMe over TCP, a remote authenticated attacker could exploit this vulnerability to cause kernel panic, and results in a denial of service condition.
CWE: CWE-476: NULL Pointer Dereference
CVSS Source: IBM X-Force
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-6535
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in the NVMe driver. By sending specially crafted TCP packages when using NVMe over TCP, a remote authenticated attacker could exploit this vulnerability to cause kernel panic, and results in a denial of service condition.
CWE: CWE-476: NULL Pointer Dereference
CVSS Source: IBM X-Force
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-6536
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in the NVMe driver. By sending specially crafted TCP packages when using NVMe over TCP, a remote authenticated attacker could exploit this vulnerability to cause kernel panic, and results in a denial of service condition.
CWE: CWE-476: NULL Pointer Dereference
CVSS Source: IBM X-Force
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-5178
DESCRIPTION: Linux Kernel could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free flaw in the nvmet_tcp_free_crypto function in the NVMe-oF/TCP subsystem. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CWE: CWE-416: Use After Free
CVSS Source: IBM X-Force
CVSS Base score: 8.8
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2023-45871
DESCRIPTION: Linux Kernel is vulnerable to a buffer overflow, caused by improper bounds checking by the IGB driver in drivers/net/ethernet/intel/igb/igb_main.c. By sending a specially crafted request, a remote attacker from within the local network could overflow a buffer and execute arbitrary code or cause a denial of service.
CWE: CWE-131: Incorrect Calculation of Buffer Size
CVSS Source: IBM X-Force
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Storage Virtualize | 8.7.0, 8.7.1 |
Remediation/Fixes
IBM recommends that you fix this vulnerability by upgrading affected versions of IBM SAN Volume Controller, IBM FlashSystem 5200 and 5300, IBM FlashSystem 7200 and 7300, IBM FlashSystem 9100, 9200 and 9500 and IBM Storage Virtualize for Public Cloud to the following code levels or higher:
8.7.0.3
8.7.2.0
Latest IBM SAN Volume Controller Code
Latest IBM FlashSystem 9500 Code
Latest IBM FlashSystem 9100 Family Code
Latest IBM FlashSystem 9200 Code
Latest IBM FlashSystem 7300 Code
Latest IBM FlashSystem 7200 Code
Latest IBM FlashSystem 5000 and 5200 Code
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
26 Feb 2025: 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
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
26 February 2025
UID
ibm17183482